Posts Tagged: "dependent claims"

CAFC Schools District Court on Claim Construction Again

On Tuesday, the U.S. Court of Appeals for the Federal Circuit (CAFC) vacated and remanded a decision of the U.S. District Court for the District of Nevada denying Power Probe’s request for a preliminary injunction to bar future sales of Innova Electronics Corporation’s Powercheck #5420 device. The CAFC held that the district court erred in its preliminary claim construction, particularly in determining that “detecting continuity and measuring continuity are mutually exclusive.”

CAFC Says District Court’s Claim Construction Rendered Dependent Claims ‘Meaningless’

On April 4, the U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision in Littelfuse, Inc. v. Mersen USA EP Corp. clarifying how U.S. district courts handling claim construction are to construe a patent’s independent claims in light of limitations included in dependent claims. While the Federal Circuit found that the District of Massachusetts was correct to give meaning to the term “fastening stem” by looking to uses of “fastening” and “stem” within the patent, the appellate court vacated and remanded a stipulated judgment of non-infringement, as the district court’s construction of certain independent claim terms would render superfluous other claim terms from dependent claims.

Federal Circuit: PTAB Improperly Relied on Unsupported Expert Opinion

Ericsson petitioned for inter partes review of the ’408 patent, and the PTAB upheld its validity. Without separately analyzing the challenged dependent claims, the PTAB held that claim 1 was not anticipated or obvious. On appeal, the Federal Circuit reversed with respect to claim 1 and vacated and remanded as to the remaining claims. Judge Wallach dissented, saying he thought the majority improperly substituted its own factual findings for those of the PTAB.

In re Lovin: The Examiner’s Answer is Too Late To Make a Proper Rejection of Dependent Claims

Lovin has received exceptional attention in the patent law blogosphere. In short, Lovin permits an examiner to wait until an examiner’s answer to explain how and why dependent claims are rejected. What’s worse, Lovin permits the examiner to require the applicant to provide a substantive reason for patentability before the examiner explains the rejection. The Federal Circuit is considering whether to hear In re Lovin en banc, and indeed they should rehear Lovin en banc. The Federal Circuit should defend the applicant’s right to receive a meaningful explanation of claim rejections before the applicant is required to rebut the rejections.