Posts Tagged: "System Claims"

Recent Case Law on the Extraterritorial Reach of Japanese Patents

On July 29, 2022, a Japanese Internet service company published a press release that  surprised IP practitioners in Japan. DWANGO INC., the appellant and the plaintiff, lost patent infringement litigation against FC2, Inc., a U.S. based content provider, and another party, (FC2), at the Tokyo district court in September, 2018. The press release announced that DWANGO won over FC2 in the appeal at the Intellectual Property High Court (IPHC), which is similar to the U.S. Court of Appeals for the Federal Circuit in the United States. The IPHC determined that, while respective programs at issue in the present case were transmitted from servers outside Japan, it would be substantially unjust if liability for patent infringement could be easily avoided by locating a piece of equipment, such as a server, outside of Japan in today’s digital society.

Beware of Conditional Limitations when Drafting Patent Claims

Buried in the claim language, conditional limitations may be a vulnerability in an otherwise valuable claim. A conditional limitation is a claim feature that depends on a certain condition being present. For example, when or if condition X is present, feature Y is implemented or has effect. Without condition X, feature Y may be dormant or have no effect. Patent owners should be cognizant of possible conditional limitations implications because conditional limitations may affect claim validity and infringement as discussed below in the context of recent U.S. Patent Office and Federal Circuit cases. In Ex Parte Schulhauser, the Patent Trial and Appeal Board (“the Board”) held certain claims as unpatentable based on conditional limitations.