Top Patent Firms for 2015

By Paul Harrity
July 28, 2016

Class of 2015We compiled a list of the top patent firms, which are ranked based on the total number of U.S. utility patents that issued in 2015 where the patent firms were listed on the front of the utility patents. We have included only patent firms that have obtained at least 50 utility patents. We made an attempt to correct for typographical errors. We did not eliminate company legal departments from the list.

 

Rank Law Firm Name 2015 Utility
Patents
1 OBLON MCCLELLAND MAIER & NEUSTADT 6152
2 SUGHRUE MION PLLC 4460
3 BIRCH STEWART KOLASCH & BIRCH LLP 3592
4 FISH & RICHARDSON PC 3344
5 KNOBBE MARTENS OLSON & BEAR LLP 3196
6 OLIFF PLC 3093
7 HARNESS DICKEY & PIERCE PLC 3052
8 CANTOR COLBURN LLP 2889
9 KILPATRICK TOWNSEND & STOCKTON LLP 2483
10 FOLEY & LARDNER LLP 2433
11 MCDERMOTT WILL & EMERY LLP 2135
12 NOVAK DRUCE CONNOLLY BOVE & QUIGG LLP 2099
13 FITZPATRICK CELLA HARPER & SCINTO 1917
14 NIXON & VANDERHYE PC 1898
15 SCHWEGMAN LUNDBERG & WOESSNER PA 1889
16 BRINKS GILSON & LIONE
1782
17 CANON USA INC IP DIVISION *** 1610
18 BUCHANAN INGERSOLL & ROONEY PC 1513
19 MORGAN LEWIS & BOCKIUS LLP 1491
20 BLAKELY SOKOLOFF TAYLOR & ZAFMAN 1485
21 MUNCY GEISSLER OLDS & LOWE PC 1480
22 FINNEGAN HENDERSON FARABOW GARRETT & DUNNER 1472
23 WENDEROTH LIND & PONACK LLP 1438
24 STAAS & HALSEY LLP 1431
25 BANNER & WITCOFF LTD 1389
26 SLATER & MATSIL LLP 1364
27 BAKER BOTTS LLP 1263
28 KENYON & KENYON LLP 1224
29 DENTONS LLP ***
1199
30 WESTERMAN HATTORI DANIELS & ADRIAN LLP 1177
31 PATTERSON & SHERIDAN LLP 1160
32 PERKINS COIE LLP 1094
33 JIANQ CHYUN IP OFFICE 1088
34 LERNER DAVID LITTENBERG & MENTLIK LLP 1085
35 SCULLT SCOTT MURPHY & PRESSER PC 1073
36 YOUNG & THOMPSON 1065
37 LOWE HAUPTMAN & HAM LLP 1050
38 GREENBLUM & BERNSTEIN PLC 1046
39 BAKER & HOSTETLER LLP 1042
40 BROOKS KUSHMAN PC 1020
41 DRINKER BIDDLE & REATH LLP 1005
42 LEYDIG VOIT & MAYER LTD 973
43 HAYNES & BOONE LLP 962
44 SEED IP LAW GROUP 951
45 MERCHANT & GOULD PC 946
46 MCDONNELL BOEHNEN HULBERT & BERGHOFF LLP 933
47 STERNE KESSLER & GOLDSTEIN & FOX PLLC 906
48 MINTZ LEVIN COHN FERRIS GLOVSKY & POPEO PC 897
49 GLOBAL IP SERVICES 897
50 MICHAEL BEST & FRIEDRICH LLP 881
51 LADAS & PARRY LLP 869
52 CHRISTIE PARKER & HALE LLP 861
53 KEATING & BENNETT LLP 852
54 MORRISON & FOERSTER LLP 851
55 RABIN & BERDO PC 842
56 VOLPE & KOENIG PC 831
57 MYERS BIGEL SIBLEY & SAJOVEC PA 824
58 FENWICK & WEST LLP 818
59 ALSTON & BIRD LLP 816
60 WOLF GREENFIELD & SACKS PC 812
61 PILLSBURY WINTHROP SHAW PITTMAN LLP 807
62 WORKMAN NYDEGGER 797
63 NIXON PEABODY LLP 776
64 CROWELL & MORING LLP 773
65 INGRASSIA FISHER & LORENZ PC 772
66 K & L GATES LLP 767
67 MEYERTONS HOOD KIVLIN KOWERT & GOETZEL PC 764
68 OSHA LIANG LLP 748
69 SHERIDAN ROSS PC 736
70 RENNER OTTO BOISSELLE & SKLAR LLP 728
71 ALLEMAN HALL MCCOY RUSSELL & TUTTLE LLP 701
72 ARENT FOX LLP 699
73 NSIP LAW 697
74 LOCKE & LORD LLP 691
75 FRISHAUF HOLTZ GOODMAN & CHICK PC 688
76 MCCLURE QUALEY & RODACK LLP 675
77 PEARNE & GORDON LLP 674
78 MCGINN IP LAW GROUP PLLC 673
79 MARSHALL GERSTEIN & BORUN LLP 665
80 LEE HONG DEGERMAN KANG & WAIMEY 665
81 FLETCHER YODER PC 649
82 CONLEY ROSE PC 647
83 BARNES & THORNBURG LLP 637
84 DORITY & MANNING PA 636
85 MILES & STOCKBRIDGE PC 634
86 AMIN TUROCY & WATSON LLP 634
87 STUDEBAKER & BRACKETT PC 630
88 LOWENSTEIN SANDLER LLP 621
89 SHUMAKER & SIEFFERT PA 615
90 DLA PIPER LLP US 590
91 BACON & THOMAS PLLC 576
92 FAEGRE BAKER DANIELS LLP 570
93 WEBB LAW FIRM 570
94 LEE & MORSE PC 569
95 RATNERPRESTIA 568
96 GREENBERG TRAURIG LLP 564
97 WPAT PC 554
98 RANKIN HILL & CLARK LLP 543
99 FAY SHARPE FAGAN MINNICH & MCKEE LLP 543
100 CARLSON GASKEY & OLDS 538
101 HAMRE SCHUMANN MUELLER & LARSON PC 535
102 MCKENNA LONG & ALDRIDGE LLP *** 533
103 DORSEY & WHITNEY LLP 515
104 ROSSI KIMMS & MCDOWELL LLP 510
105 YEE & ASSOCIATES PC 509
106 ROBERTS MLOTKOWSKI SAFRAN & COLE PC 505
107 WESTMAN CHAMPLIN & KOEHLER PA 505
108 NORTON ROSE FULBRIGHT LLP 505
109 KLARQUIST SPARKMAN LLP 502
110 ROSENBERG KLEIN & LEE 494
111 DUANE MORRIS LLP 494
112 WOOD HERRON & EVANS LLP 491
113 COOLEY LLP 488
114 JEFFERSON IP LAW LLP 487
115 HARRINGTON & SMITH LLP 483
116 ROTHWELL FIGG ERNST & MANBECK PC 479
117 THE FARRELL LAW FIRM PC 479
118 LEE & HAYES PLLC 476
119 ZILKA KOTAB PC 474
120 HEWLETT PACKARD PATENT DEPARTMENT 465
121 WOMBLE CARLYLE SANDRIDGE & RICE PLLC 464
122 HESLIN ROTHENBERG FARLEY & MESITI PC 459
123 ROBINSON INELLECTUAL PROPERTY LAW OFFICE PC 454
124 SCHMEISER OLSEN & WATTS 453
125 EDELL SHAPIRO & FINNAN LLC 452
126 ALLEN DYER DOPPELT MILBRATH & GILCHRIST PA 451
127 HANLEY FLIGHT & ZIMMERMAN LLC 450
128 MCANDREWS HELD & MALLOY LTD 450
129 LUCAS & MERCANTI LLP 446
130 WILSON SONSINI GOODRICH & ROSATI 441
131 KED & ASSOCIATES LLP 440
132 MAGINOT MOORE & BECK LLP 440
133 FUJITSU PATENT CENTER 440
134 TRASKBRITT PC 427
135 FITCH EVEN TABIN & FLANNERY 427
136 COOPER & DUNHAM LLP 426
137 GARLICK & MARKISON 424
138 QUARLES & BRADY LLP 424
139 ARMSTRONG TEASDALE LLP 423
140 IP & T GROUP LLP 422
141 GREER BURNS & CRAIN LTD 421
142 JONES DAY 421
143 F CHAU & ASSOCIATES 421
144 MCCARTER & ENGLISH LLP 417
145 SALIWANCHIK LLOYD & EISENSCHENK 416
146 COATS & BENNETT PLLC 416
147 OSTROLENK FABER LLP 415
148 HUSCH BLACKWELL LLP 408
149 DICKINSON WRIGHT PLLC 407
150 NELSON MULLINS RILEY & SCARBOROUGH LLP 406
151 MASCHOFF BRENNAN 404
152 VENABLE LLP 403
153 HC PARK & ASSOCIATES PLC 403
154 MATTINGLY & MALUR PC 402
155 TROP PRUNER & HU PC 392
156 WILLIAM PARK & ASSOCIATES LTD 390
157 MURPHY BILAK & HOMILLER PLLC 379
158 VAN PELT YI & JAMES LLP 378
159 PARK VAUGHAN FLEMING & DOWLER LLP 376
160 PIONEER HI BRED INTL 371
161 WITHROW & TERRANOVA PLLC 366
162 PROCOPIO CORY HARGREAVES & SAVITCH LLP 362
163 COZEN OCONNOR PC 362
164 QUINN LAW GROUP PLLC 361
165 THOMAS HORSTEMEYER LLP 360
166 TROUTMAN SANDERS LLP 353
167 DINSMORE & SHOHL LLP 349
168 ROPES & GRAY LLP 347
169 TAROLLI SUNDHEIM COVELL & TUMMINO LLP 347
170 SUTHERLAND ASBILL & BRENNAN LLP 346
171 LATHROP & GAGE LLP 346
172 RYAN MASON & LEWIS LLP 345
173 GIFFORD KRASS GROH SPRINKLE ANDERSON & CITKOWSKI 344
174 CARTER DELUCA FARRELL & SCHMIDT LLP 344
175 POSZ LAW GROUP PLC 343
176 ESCHWEILER & ASSOCIATES LLC 336
177 FOX ROTHSCHILD LLP 334
178 PANITCH SCHWARZE BELISARIO & NADEL LLP 333
179 DITTHAVONG & STEINER PC 333
180 NEAL GERBER & EISENBERG LLP 330
181 FLEIT GIBBONS GUTMAN BONGINI & BIANCO PL 327
182 KING & SPALDING LLP 325
183 WEAVER AUSTIN VILLENEUVE & SAMPSON LLP 324
184 CHRISTENSEN OCONNOR JOHNSON KINDNESS PLLC 324
185 IPUSA PLLC 319
186 FROMMER LAWRENCE & HAUG LLP 315
187 BOZICEVIC FIELD & FRANCIS LLP 313
188 PATENT CAPITAL GROUP 312
189 HICKMAN PALERMO BECKER BINGHAM LLC 311
190 HAMILTON BROOK SMITH & REYNOLDS 310
191 DICKSTIEN SHAPIRO LLP 310
192 GE GLOBAL PATENT OPERATION 305
193 BURR & BROWN 302
194 WILMER CUTLER PICKERING HALE & DORR LLP 302
195 BLANK ROME LLP 302
196 PRICE HENEVELD LLP 301
197 COWAN LIEBOWITZ & LATMAN PC 301
198 SEAGER TUFTE & WICKHEM LLC 298
199 PEARL COHEN ZEDEK LATZER LLP 298
200 HOFFMANN & BARON LLP 296
201 ALG INTELLECTUAL PROPERTY LLC 296
202 MOORE & VAN ALLEN PLLC 295
203 MILLEN WHITE ZELANO & BRANIGAN PC 294
204 HOFFMAN WARNICK LLC 291
205 LANDO & ANASTASI LLP 289
206 SNELL & WILMER LLP 287
207 CKC & PARTNERS CO 285
208 COLLARD & ROE PC 283
209 GUNTIN & GUST PLC 282
210 HAUPTMAN HAM LLP 282
211 KINNEY & LANGE PA 280
212 MARBURY LAW GROUP PLLC 280
213 LOWE GRAHAM JONES PLLC 276
214 JENKINS WILSON TAYLOR & HUNT PA 274
215 TOLER LAW GROUP 271
216 MILLER MATTHIAS & HULL 266
217 MACMILLAN SOBANSKI & TODD LLC 266
218 TUTUMJIAN & BITETTO PC 264
219 MORI & WARD LLP 263
220 REISING ETHINGON PC 262
221 HARRITY & HARRITY LLP 262
222 TREYZ LAW GROUP 262
223 SHEPPARD MULLIN RICHTER & HAMPTON LLP 261
224 SCHWABE WILLIAMSON & WYATT PC 261
225 KACVINSKY DAISAK BLUNI PLLC 260
226 HOWARD & HOWARD 258
227 KIRTON & MCCONKIE 258
228 BOYLE FREDRICKSON SC 258
229 NATH GOLDBERG & MEYER 257
230 THORPE NORTH & WESTERN 256
231 WINSTEAD PC 256
232 PATTERSON THUENTE CHRISTENSEN PEDERSEN PA 254
233 SWANSON & BRATSCHUN LLC 251
234 BROOKS CAMERON & HUEBSCH PLLC 251
235 INNOVATION COUNSEL LLP 249
236 YOUNG BASILE HANLON & MACFALANE PC 248
237 GARDERE WYNNE SEWELL LLP 248
238 LEMPIA SUMMERFIELD KATZ LLC 245
239 KAMRATH IP LAWFIRM PA 242
240 NUTTER MCCLENNEN & FISH LLP 239
241 VISTA IP LAW GROUP LLP 239
242 VOLENTINE FRANCOS & WHITT PLLC 238
243 LI & CAI INTELLECTUAL PROPERTY USA OFFICE 237
244 HOLLAND & HART LLP 236
245 BRACEWELL & GIULIANI LLP 236
246 STOEL RIVES LLP 234
247 CESARI & MCKENNA LLP 232
248 DICKE BILLIG & CZAJA PLLC 231
249 ANDRUS INTELLECTUAL PROPERTY LAW LLP 231
250 HONIGMAN MILLER SCHWARTZ & COHN 229
251 CARRIER BLACKMAN & ASSOCIATES PC 229
252 BROWDY & NEIMARK 227
253 DELIZIO LAW PLLC 226
254 KUNZLER LAW GROUP PC 226
255 VIERRA MAGEN MARCUS LLP 225
256 MARSH FISCHMANN & BREYFOGLE LLP 224
257 DAVIS WRIGHT TREMAINE LLP 224
258 SUNSTEIN KANN MURPHY & TIMBERS LLP 222
259 KONRAD RAYNES DAVDA & VICTOR LLP 220
260 ABEL LAW GROUP LLP 218
261 GRIFFITHS & SEATON PLLC 217
262 PATENT PORTFOLIO BUILDERS PLLC 217
263 LECLAIRRYAN 215
264 OHLANDT GREELEY RUGGIERO & PERLE LLP 212
265 KRATZ QUINTOS & HANSON LLP 212
266 POLSINELLI PC 210
267 ADDITION HIGGINS & PENDLETON PA 210
268 DAVIS & BUJOLD PLLC 209
269 MARGER JOHNSON & MCCOLLOM PC 208
270 GOODWIN PROCTER LLP 207
271 FISHMAN STEWART PLLC 205
272 ST ONGE STEWARD JOHNSTON & REENS LLC 203
273 MARTINE & PENILLA LLP 201
274 HAYNES BEFFEL & WOLFELD LLP 198
275 REINHART BOERNER VAN DEUREN PC 197
276 CHA & REITER LLC 197
277 SHOOK HARDY & BACON 197
278 HAMILTON DESANCTIS & CHA LLP 195
279 CRGO LAW 195
280 MH2 TECH LAW GROUP LLP 193
281 DALY CROWLEY MOFFORD & DURKEE LLP 192
282 STITES & HARBISON PLLC 191
283 HOLLAND & KNIGHT LLP 190
284 DAVIDSON DAVIDSON & KAPPEL LLC 190
285 HOVEY WILLIAMS LLP 187
286 BRAKE HUGHES BELLERMANN LLP 187
287 BALLARD SPAHR LLP 185
288 ANOVA LAW GROUP PLLC 183
289 BRUNDIDGE & STANGER PC 183
290 AMERSON LAW FIRM PLLC 183
291 SUITER SWANTZ PC LLO 182
292 CHEN YOSHIMURA LLP 181
293 LEXYOUME IP MEISTER PLLC 179
294 SONY CORP 179
295 SMITH GAMBRELL & RUSSELL LLP 177
296 SCHIFF HARDIN LLP 176
297 WHITHAM CURTIS & CHRISTOFFERSON & COOK PC 175
298 PEPPER HAMILTON LLP 173
299 MORRIS MANNING & MARTIN LLP 172
300 HOLLINGSWORTH DAVIS LLC 171
301 LEASON ELLIS LLP 171
302 FOGG & POWERS LLC 171
303 THOMPSON HINE LLP 170
304 PERREAULT & PFLEGER PLLC 169
305 KATTEN MUCHIN ROSENMAN LLP 168
306 RADAR FISHMAN & GRAUER PLLC 168
307 ABELMAN FRAYNE & SCHWAB 168
308 FARJAMI & FARJAMI LLP 167
309 MUETING RAASCH & GEBHARDT & SCHWAPPACH PA 166
310 MOTS LAW PLLC 166
311 FISH & TSANG LLP 165
312 MCKEE VOORHEES & SEASE 164
313 OCCHIUTI & ROHLICEK LLP 164
314 KENNEDY LENART SPRAGGINS LLP 163
315 MCCORMICK PAULDING & HUBER LLP 163
316 FRASER CLEMENS MARTIN & MILLER LLC 163
317 HAHN LOESER & PARKS LLP 161
318 BAINWOOD HUANG & ASSOCIATES LLC 161
319 SKF USA INC 160
320 ROYLANCE ABRAMS BERDO & GOODMAN LLP 159
321 JACOBSON HOLMAN PLLC 159
322 HOGAN LOVELLS LLP 158
323 MORRIS & KAMLAY LLP 158
324 WEBSTER & ELLIOT LLP 158
325 HAVERSTOCK & OWENS LLP 158
326 MEUNIER CARLIN & CURFMAN LLC 156
327 SENNIGER POWERS LLP 156
328 ADELI LLP 156
329 JORDAN IP LAW LLC 155
330 CALFEE HALTER & B GRISWOLD LLP 155
331 KLEIN ONEILL & SINGH LLP 154
332 OPPEDAHL PATENT LAW FIRM LLC 153
333 BURNS & LEVINSON LLP 153
334 GIBB & RILEY LLC 152
335 FROST BROWN TODD LLC 152
336 HAYES SOLOWAY PC 151
337 JORDAN & HAMBURG LLP 151
338 DUFT BORNSEN & FETTIG LLP 149
339 HUNTON & WILLIAMS LLP 148
340 CHRISTOPHER & WEISBERG PA 148
341 BEYER LAW GROUP LLP 147
342 BAKER & MCKENZIE LLP 147
343 PATENT LAW WORKS LLP 146
344 BERESKIN & PARR LLP 146
345 RENNER KENNER GREIVE BOBAK TAYLOR & WEBER 146
346 SORELL LENNA & SCHMIDT LLP 145
347 HALL ESTILL ATTORNEY AT LAW 145
348 JACKSON WALKER LLP 144
349 PLUMSEA LAW GROUP LLC 144
350 COOPER LEGAL GROUP LLC 144
351 JC PATENTS 143
352 MAHAMEDI PARADICE LLP 143
353 MYERS WOLIN LLC 143
354 SERVILLA WHITNEY LLC 143
355 CHOATE HALL & STEWART LLP 143
356 WOOD PHILLIPS KATZ CLARK & MORTIMER 143
357 DOWNEY BRAND LLP 142
358 HAZUKI INT LLC 142
359 WOODARD EMHARDT MORIARTY MCNETT & HENRY 142
360 ANTONELLI TERRY STOUT & KRAUS LLP 142
361 SMITH RISLEY TEMPEL SANTOS LLC 140
362 STEIN IP LLC 140
363 STEINFL & BRUNO LLP 140
364 STETINA BRUNDA GARRED & BRUCKER 140
365 TAFT STETTINIUS & HOLLISTER LLP 140
366 ECKERT SEAMANS CHERIN & MELLOTT LLC 140
367 BRYAN CAVE LLP 139
368 BOOKOFF MCANDREWS PLLC 139
369 CLARK & ELBING LLP 138
370 CUENOT FORSYTHE & KIM LLC 138
371 MOSER TABOADA 138
372 VEDDAR PRICE PC 138
373 CARSTENS & CAHOON LLP 137
374 FOLEY HOAG LLPP 136
375 KPPB LLP 135
376 FAY KAPLUN & MARCIN LLP 135
377 LOZA & LOZA LLP 135
378 TERRILE CANNATTI CHAMBERS & HOLLAND LLP 134
379 BACHMAN & LAPOINTE PC 134
380 MCGLEW & TUTTLE 133
381 GARDNER LINN BURKHART & FLORY LLP 132
382 FOUNTAINHEAD LAW GROUP PC 132
383 KEOHANE & DALESSANDRO PLLC 131
384 BOND SCHOENECK & KING PLLC 130
385 ONELLO & MELLO LLP 130
386 ARTEGIS LAW GROUP LLP 130
387 US NAVAL RES LABORATORY 130
388 GENERAL ELECTRIC CO 129
389 CARR & FERRELL LLP 129
390 DYKEMA GOSSETT PLLC 128
391 NORRIS MCLAUGHLIN & MARCUS PA 127
392 AMSTER ROTHSTEIN & EBENSTEIN LLP 127
393 SEYFARTH SHAW LLP 127
394 MCNEES WALLACE & NURICK LLC 126
395 SLAYDEN GRUBERT BEARD PLLC 126
396 LEWIS ROCA ROTHGERBER LLP 126
397 SHAY GLENN LLP 125
398 SINORICA LLC 125
399 TUCKER ELLIS LLP 125
400 SAUL EWING LLP 125
401 CAESAR RIVISE BERNSTEIN COHEN & POKOTILOW LTD 122
402 WARNER NORCROSS & JUDD LLP 122
403 ANDREWS & KURTH LLP 122
404 FLYNN THIEL BOUTELL & TANIS PC 121
405 WOLFE SBMC 121
406 BUCKLEY MASCHOFF & TALWALKAR LLC 121
407 HARTMAN & CITRIN LLC 120
408 KENEALY VAIDYA LLP 120
409 BROWNSTEIN HYATT FARBER SCHRECK LLP 120
410 MANNAVA & KANG 119
411 VAN COTT BAGLEY CONWALL & MCCARTHY 119
412 EDWARDS WILDMAN PALMER LLP 117
413 KRIEG DEVAULT LLP 116
414 OCONNOR COZEN 116
415 PERRY & CURRIER INC 116
416 SHERR & JIANG PLLC 116
417 WHITE & CASE LLP 116
418 FREDRIKSON & BYRON PA 115
419 STRAUB & POKOTYLO 115
420 WONG CABELLO LUTSCH RUTHERFORD & BRUCCULERI 115
421 DANN DORFMAN HERRELL & SKILLMAN 115
422 NOVICK KIM & LEE PLLC 114
423 SMALL PATENT LAW GROUP 114
424 CLARK & BRODY 114
425 FERENCE & ASSOCIATES LLC 113
426 FINCH & MALONEY PLLC 113
427 PARKER HIGHLANDER PLLC 113
428 CHAPIN IP LAW LLC 113
429 MUIRHEAD & SATURNELLI LLC 111
430 PARKS WOOD LLC 111
431 ADAMS & WILKS 111
432 KILE PARK REED & HOUTTEMAN 110
433 THE DOBRUSIN LAW FIRM PC 110
434 IMPERIUM PATENT WORKS 110
435 HODGSON RUSS LLP 109
436 JACKSON IPG PLLC 109
437 KOPPEL PATRICK HEYBL & PHILPOTT 109
438 MUIR PATENT CONSULTING PLLC 109
439 PRASS LLP 109
440 CLEMENTS BERNARD PLLC 109
441 INT IP LAW GROUP 108
442 SAILE ACKERMAN LLC 108
443 AKERMAN LLP 108
444 SIMPSON & SIMPSON PLLC 108
445 RUTAN & TUCKER LLP 107
446 CONDO ROCCIA KOPTIW LLP 107
447 PROSKAUER ROSE LLP 106
448 BORDEN LADNER GERVAIS LLP 106
449 SCHOLL MATTHIAS 105
450 ADE & CO INC 105
451 STEPTOE & JOHNSON LLP 104
452 MOSSMAN KUMAR & TYLER PC 104
453 KAGAN BINDER PLLC 103
454 KAPLAN BREYER SCHWARZ & OTTESEN LLP 103
455 SHIMOKAJI & ASSOCIATES PC 103
456 ADVENT LLP 103
457 CAMPBELL STEPHENSON LLP 102
458 THOMPSON COBURN LLP 101
459 BROWN RUDNICK LLP 101
460 WINSTON & STRAWN LLP 101
461 KUSNER & JAFFE 100
462 LUEDEKA NEELY GROUP PC 100
463 AUSTIN RAPP & HARDMAN 100
464 NIELDS LEMACK & FRAME LLC 99
465 DERGOSITS & NOAH LLP 99
466 STANDLEY LAW GROUP LLP 99
467 BOOTH UDALL FULLER PLC 97
468 KOLISCH HARTWELL P C 97
469 PARKER IBRAHIM & BERG LLC 97
470 BEUSSE WOLTER SANKS & MAIRE PA 97
471 ISHIMARU & ASSOCIATES LLP 96
472 OKAMOTO & BENEDICTO LLP 96
473 OSHEA GETZ PC 96
474 CERMAK NAKAJIMA LLP 96
475 PATTERSON INTELLECTUAL PROPERTY LAW 95
476 ATKINS & ASSOCIATES PC 95
477 WRB IP LLC 95
478 CHRISTENSEN FONDER PA 94
479 VORYS SATER SEYMOUR & PEASE LLP 94
480 WHYTE HIRSCHBOECK DUDEK SC 94
481 BEJIN BIENEMAN PLC 94
482 DIEDERIKS & WHITELAW PLC 92
483 DILWORTH & BARRESE LLP 92
484 EGBERT LAW OFFICES 92
485 NIKOLAI & MERSEREAU PA 92
486 RUSSELL NG PLLC 92
487 BUSKOP LAW GROUP PC 92
488 HOWARD IP LAW GROUP PC 90
489 LARSON NEWMAN LLP 90
490 FULWIDER PATTON LLP 90
491 GATES & COOPER LLP 89
492 GAZDZINSKI & ASSOCIATES PC 89
493 GORDON & JACOBSON PC 89
494 SHUTTLEWORTH & INGERSOLL PLC 89
495 D KLIGLER IP SERVICES LTD 89
496 SILICON VALLEY PATENT GROUP LLP 89
497 MCHALE & SLAVIN PA 88
498 MONTGOMERY PATENT & DESIGN LP 88
499 STOLOWITZ FORD COWGER LLP 88
500 DAVID & RAYMOND PATENT FIRM 88
501 ZIOLKOWSKI PATENT SOLUTIONS GROUP 88
502 KWAN & OLYNICK LLP 87
503 PLAGER SCHACK LLP 87
504 WALL & TONG LLC 87
505 BYRNE POH LLP 87
506 HDLS IPR SERVICES 86
507 HOLZERIPLAW PC 86
508 HOWISON & ARNOTT LLP 86
509 MILLER IP GROUP PLC 86
510 SMITH & HOPEN PA 86
511 YUDELL ISIDORE PLLC 86
512 CRAWFORD MAUNU PLLC 86
513 SAWYER LAW GROUP LLP 85
514 TURK IP LAW LLC 85
515 SAND & SEBOLT 85
516 KRAMER & AMADO PC 84
517 HOWSON & HOWSON 83
518 RIDOUT & MAYBEE LLP 83
519 BERKELEY LAW & TECH GROUP LLP 83
520 MENDELSOHN DRUCKER & ASSOCIATES PC 82
521 MIDDLETON & REUTLINGER 82
522 KILYK & BOWERSOX PLLC 82
523 GOWLING LAFLEUR HENDERSON LLP 81
524 REVOLUTION IP PLLC 81
525 ASCENDA LAW GROUP PC 81
526 STROOCK & STROOCK & LAVAN LLP 81
527 CROSSLEY PATENT LAW 80
528 PANASONIC PATENT CENTER 80
529 POLSTER LIEDER 80
530 SPRINKLE IP LAW GROUP 80
531 VIDAS ARRETT & STEINKRAUS 80
532 COOK ALEX LTD 80
533 GRIFFIN & SZIPL PC 79
534 SOCAL IP LAW GROUP LLP 79
535 CHERNOFF VILHAUER 79
536 LAW OFFICE OF JIM BOICE 78
537 LRK PATENT LAW FIRM 78
538 MARTIN & ASSOCIATES LLC 78
539 PABST PATENT GROUP LLP 78
540 EXXONMOBIL UPSTREAM RES CO LAW DEPARTMENT 78
541 GARVEY SMITH NEHRBASS & NORTH LLC 77
542 LEVINE BAGADE HAN LLP 77
543 DUNLAP CODDING LLP 77
544 EIP LLP 76
545 MAIER & MAIER PLLC 76
546 EDWARD NEILS PLLC 76
547 GTC LAW GROUP LLP & AFFILIATES 75
548 JDI PATENT 75
549 PANDISCIO & PANDISCIO 75
550 CROCKETT & CROCKETT 75
551 PARSONS BEHLE & LATIMER 74
552 LING & YANG INTELLECTUAL PROPERTY 74
553 SHERMAN IP LLP 74
554 MAINE CERNOTA & RARDIN 73
555 PARATUS LAW GROUP PLLC 73
556 WHITMYER IP GROUP LLC 73
557 ANDERSON GORECKI & ROUILLE LLP 73
558 BROOKSGROUP 72
559 REED SMITH LLP 72
560 WONG & REES LLP 72
561 BAYRAMOGLU GOKALP 72
562 MANELLI SELTER PLLC 71
563 KING & SCHICKLI PLLC 71
564 FULBRIGHT & JAWORSKI LLP 70
565 LEE LAW PLLC 70
566 LIU & LIU 70
567 PATENTS ON DEMAND PA 70
568 BERENATO & WHITE LLC 70
569 STOUT UXA BUYAN & MULLINS LLP 70
570 VANLEEUWEN & VANLEEUWEN 70
571 WANG LAW FIRM INC 70
572 CESARI & REED LLP 69
573 FIALA & WEAVER PLLC 69
574 NOVEL IP 69
575 CENTRAL CALIFORNIA IP GROUP 69
576 GARDNER GROFF GREENWALD & VILLANUEVA PC 68
577 GRAYROBINSON PA 68
578 KRAMER LEVIN NAFTALIS & FRANKEL LLP 68
579 RENAISSANCE IP LAW GROUP LLP 68
580 CHRISTOPHER MAIORANA P P C 68
581 REMARCK LAW GROUP PLC 67
582 DELIO & PETERSON LLC 66
583 LAW OFFICE OF KATSUHIRO ARAI 66
584 SCHEINBERG & ASSOCIATES PC 66
585 CHALKER FLORES LLP 66
586 TAYLOR ENGLISH DUMA LLP 66
587 VIKSNINS HARRIS & PADYS PLLP 66
588 GIBSON & DERNIER LLP 65
589 HUAWEI DEVICE CO 65
590 COCHRAN FREUND & YOUNG LLC 65
591 ALPINE TECH LAW GROUP LLC 64
592 HORIZON IP PTE LTD 64
593 MKG LLC 64
594 AKA CHAN LLP 64
595 MOFFAT & CO 64
596 OSTOLENK FABER LLP 64
597 PATENT LAW GROUP LLP 64
598 DRIGGS HOGG DAUGHERTY & DEL ZOPPO CO LPA 63
599 MARSHALL & MELHORN LLC 63
600 SOFER & HAROUN LLP 63
601 BARLOW JOSEPHS & HOLMES LTD 63
602 TUNG & ASSOCIATES 63
603 EGAN PETERMAN & ENDERS LLP 62
604 GOTTLIEB RACKMAN & REISMAN PC 62
605 IPXLAW GROUP LLP 62
606 SNYDER CLARK LESCH & CHUNG LLP 62
607 WARE FRESSOLA MAGUIRE & BARBER LLP 62
608 CHIESA SHAHINIAN & GIANTOMASI PC 62
609 GARG LAW FIRM PLLC 61
610 CURATOLO SIDOTI CO LPA; 61
611 LACKENBACH SIEGEL LLP 60
612 CHAMBERLAIN HRDLICKA 60
613 NEUGEBOREN ODOWD PC 60
614 SHUMAKER LOOP & KENDRICK 60
615 MITCH HARRIS ATTY AT LAW LLC 59
616 NOTARO & MICHALOS PC 59
617 THE BELLES GROUP PC 59
618 DASCENZO INTELLECTUAL PROPERTY LAW PA 59
619 DIERKER & ASSOCIATES PC 58
620 ELMORE PATENT LAW GROUP PC 58
621 KLINTWORTH & ROZENBLAT IP LLC 58
622 OGAWA PC 58
623 OTTERSTEDT ELLENBOGEN & KAMMER LLP 58
624 PORTER WRIGHT MORRIS & ARTHUR LLP 58
625 BROWN & MICHAELS PC 58
626 NK PATENT LAW 57
627 PAULY DEVRIES SMITH & DEFFNER 57
628 PERMAN & GREEN LLP 57
629 WINTHROP & WEINSTINE PA 57
630 JOHNSON MARCOU & ISAACS LLC 57
631 BEVER HOFFMAN & HARMS LLP 56
632 JACOX MECKSTROTH & JENKINS 56
633 JANSSON MUNGER MCKINLEY & KIRBY LTD 56
634 LAW OFFICE OF MICHAEL CHEN 56
635 ARNOLD & PORTER LLP 56
636 IPRO INC 55
637 KIMBERLY CLARK WORLDWIDE INC 55
638 RIVERSIDE LAW LLP 55
639 CAHN & SAMUELS LLP 55
640 COLOPLAST CORP COLOPLAST AS 54
641 DIGIMARC CORP 54
642 HEAD JOHNSON & KACHIGIAN 54
643 STEVENS & SHOWALTER LLP 54
644 ALIX YALE & RISTA LLP 54
645 THE MUELLER LAW OFFICE PC 54
646 TILLMAN WRIGHT PLLC 54
647 CHENG LAW GROUP PLLC 53
648 HUDAK SHUNK & FARINE CO LPA 53
649 LAW OFFICE OF MICHAEL E KONDOUDIS 53
650 LIEBERMAN & BRANDSDORFER LLC 53
651 BRADLEY ARANT BOULT CUMMINGS LLP 53
652 KLAUBER & JACKSON 52
653 PATENT CENTRAL LLC 52
654 HUNTER CLARK PLLC 52
655 RG PATENT CONSULTING LLC 52
656 STRADLEY RONON STEVENS & YOUNG LLP 52
657 WIDERMAN MALEK PL 52
658 GUICE PATENTS PLLC 51
659 HUFFMAN LAW GROUP P C 51
660 LEVENFELD PEARLSTEIN LLC 51
661 LUMEN PATENT FIRM 51
662 MAYER & WILLIAMS PC 51
663 MCGARRY BAIR LLP 51
664 PORZIO BROMBERG & NEWMAN PC 51
665 ROWAND LLP 51
666 TUMEY LLP 51
667 WEIDE & MILLER LTD 51
668 BIGGERS KENNEDY LENART SPRAGGINS LLP 51
669 KUBOTERA & ASSOCIATES LLC 50
670 SCHACHT LAW OFFICE INC 50
671 SKAAR ULBRICH MACARI PA 50
672 ULMER & BERNE LLP 50
673 ZIEGLER IP LAW GROUP 50
674 DUGAN & DUGAN PC 50

 


*** UPDATE:  As of July 1, 2015, #29 Dentons LLP (with 1,199 patents) merged with # 102 McKenna Long & Aldridge LLP (with 533 patents).  When combining these two together, their total is 1,732 patents, ultimately placing them in 17th place, just ahead of Cannon USA Inc IP Division.

The Author

Paul Harrity

Paul Harrity is a patent attorney with Harrity & Harrity, LLP. Paul started his career in patent law in 1991 as a Patent Examiner with the United States Patent and Trademark Office, examining patent applications in the areas of computer hardware and database systems. Prior to founding Harrity & Harrity, LLP in 1999, Paul worked as a patent agent and later as an associate at the law firm of Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. Prior to joining the Patent Office, Paul gained valuable industry experience as a troubleshooter at IBM and a design engineer at General Dynamics. For more information, or to contact Paul, please visit his firm profile page.

Warning & Disclaimer: The pages, articles and comments on IPWatchdog.com do not constitute legal advice, nor do they create any attorney-client relationship. The articles published express the personal opinion and views of the author and should not be attributed to the author’s employer, clients or the sponsors of IPWatchdog.com. Read more.

Discuss this

There are currently 18 Comments comments.

  1. Clinton Gallagher @tapABILITIES July 28, 2016 10:31 am

    Great work but missing the state and city the office was located in where their best and brightest actually work with those they serve but then again I suppose that extra effort was not billable eh? lol

  2. Gene Quinn July 28, 2016 10:37 am

    Clinton-

    Patent attorneys work with clients all over the world, so denoting city and state of office wouldn’t be particularly useful and might actually be misleading. Many of these firms also have multiple locations across the US and some even outside the US. And getting into the “best and brightest” starts to become a beauty pageant unless it is carefully curated. Something I’m open to doing but have yet to figure out how to meaningfully do it in an honest way.

    -Gene

  3. Ben Kusiak July 28, 2016 12:02 pm

    What would be interesting to me is to see a column added for how many attorneys/agents are/were at each firm. It would allow a correlation to be drawn regarding how “productive” or “active” a given firm is.

  4. Gene Quinn July 28, 2016 12:23 pm

    Ben-

    Thanks for the suggestion.

    Everyone-

    Please keep the suggestions coming.

    -Gene

  5. ItCouldBeWorse July 28, 2016 12:24 pm

    How about a list based on issued design patents?

  6. Curious July 28, 2016 1:44 pm

    While addressing this issue is probably not worth the trouble, some firms do not have their names put on the front of the patent for some/all clients. Also, some clients have outside counsel prepare the responses and then (if they are big/savvy enough) file it themselves. On the flip side, some firms have foreign clients whose attorneys prepare the responses, and the US firm just files it.

    However, the methodology is good enough to separate the wheat from the chaff and identify the 600lb gorillas.

    I found a similar list useful a long time ago when I was looking to change locales (and hence firms since my current firm wasn’t in the locale). Turned out, I got a job at one of those 600lb gorilla firms — it was a great experience.

  7. Lawrence S. Cohen July 28, 2016 3:07 pm

    The list, the above comment and response help emphasize my comment which starts with, what value is being posted. I’m a solo and my 2015 number of issued patents is 15. That’s 15 per capita. I looked at the firms who scored 50 and although I don’t beat them all on a per attorney/agent count, I would make that list on that basis. I suggest that measuring the success per person, would be a way of comparing how we work and a variable to evaluate productivity (along with a other variables of course), comparing client types (sole inventor vs repeating client), and comparing management style. It can help us learn from our colleagues.
    Anyway, keep up the good posting, always informative sometimes challenging.

  8. Matt July 28, 2016 5:22 pm

    Agree with the above comment. It would be interesting to supply a second listing which listed patents per attorney/agent.

  9. step back July 28, 2016 5:23 pm

    Wow.

    Have we degenerated to a mere numbers game?
    (As stored in an abstract generic computer?)

    How many pages per patent? 3, 20 or 100?
    How many sheets of drawings?
    Where did the patents originate? Here in USA or is the firm a foreign filing mill?
    How complex is the subject matter?

    And ultimately, what value (ROI) do the claims provide to the client?

  10. Clinton Gallagher @tapABILITIES July 28, 2016 7:06 pm

    Gene, Gene, Gene,

    “…denoting city and state of office wouldn’t be particularly useful and might actually be misleading..” you say? Au contraire as it is often put.

    Information about lawyers is kept obscure. If anybody is concerned with mistrust, all of us I contend should ask lawyers for more transparency. Those that agree earn my trust.

    Furthermore, the best and brightest do exist and I know this to be true because I have been such a colleague myself and I want to be around them as much as possible; their rising tide floats my boat.

    That said I am learning a whole lot of good stuff reading your blog. Thank you.

  11. Gene Quinn July 28, 2016 7:24 pm

    Clinton-

    I never said that the best and brightest do not exist. What I said is if I am going to publish a list the purports to be of the best and brightest, as you suggest, it needs to past muster and be defensible. Best and brightest is quite subjective and the methods I’ve seen used or heard discussed haven’t seemed to me to be solid enough to put my stamp of approval on, at least not yet. No doubt there are ways to investigate a particular lawyer and come to a reasonable opinion, perhaps even an objective opinion within certain broad parameters. But to purport to do that for 40,000 (or so) active patent practitioners is another matter.

    In terms of your comment about information about lawyers being kept obscure, I have no idea what you are talking about really. Anyone interested can simply copy the name of the firm and put it into Google and within a matter of seconds the firm website will appear with contact information, etc. It isn’t like these firms are trying to hide from clients interested in their services.

    I’m not sure what transparency would be gained by publishing office information. Patent law is just not the type of practice where people ordinarily hire a local attorney. Most clients search out an attorney that works with the technology relating to their invention. I know I’ve never represented a client who lived or worked in the town or county where I’m located. I’ve represented clients from as far away as Australia and New Zealand, and all of the U.S. That is the experience of most patent professionals.

    -Gene

  12. Lawrence S. Cohen July 28, 2016 7:58 pm

    Look, the list isn’t some kind of wonder-book. Its just a list. Its use is a bit of amusing interest. And, those on the list can take pride in being published and a bit of promotional effect. That’s why I would like a chance to get on the list. Thus the per capita proposal. It would give us small folks a chance to shine a bit which the formula denies us. Lets not work this so hard, its not some kind of holiness definition.

  13. Fred Furrer July 29, 2016 3:38 am

    I think it would be useful to know the subject of the majority of patents obtained by each firm. In other words, what fields do these firms specialize in? I personally think it is very important for the firm to be matched to the subject matter of the patent application in order for a proper prosecution of the application to be done.

  14. Night Writer July 29, 2016 9:08 am

    It would be interesting to see how many of those applications were written by the firm as opposed to filling a foreign application in the US.

    (I have worked for 3 of the top 30.) You can fix-up and file a foreign app in a day. Plus some firms get large numbers of filed cases transferred to them.

    I haven’t worked for Fish & Richardson, but since they are a quality firm with huge numbers, it would be interesting to see a break-down for where their patents came from.

  15. Anon July 30, 2016 9:24 am

    Clinton,

    You whine too much.

    This list is NOT as you portray (“when their firm appears on a list which purports to imply the firm became a top performer on the basis of the best and brightest working for the firm“).

    This list tells you that: “which are ranked based on the total number of U.S. utility patents that issued in 2015.”

  16. TJM July 30, 2016 3:11 pm

    Other comments have mentioned this, but I would like to see the numbers differentiate between utility/design/plant patents, and also differentiate how many patents have US priority vs. foreign priority. I think the numbers are likely inflated by design patents (which are often simply rubber stamped) and by those that simply file and prosecute 371 applications for foreign clients/firms. For 371 apps, the US firm is typically providing guidance but not doing the heavy lifting.

    I also agree with identifying the number of practitioners in each firm with a registration number.

    Someone mentioned including some type of ROI metric. Obviously, this would be great, but it is obscured by many other factors that are outside of attorney/agent control.

  17. Gene Quinn July 30, 2016 6:41 pm

    TJM-

    I don’t think the numbers are inflated with design patents. For the firm I’m associated with at least the number was correct and represented only utility patents, not design patents.

    Some of the firms at the top of the list do have a lot of foreign prosecution business, and that would inflate numbers compared to those firms that do not have much, if any, foreign prosecution work.

    -Gene

  18. FRANK LUKASIK August 15, 2016 9:17 am

    Here is what I believe is the first computer program
    Patent: 3,374,486 Issued March 18, 1968. It’s the first application I ever filed.