Copyright and Patent Litigation Field Jerger established its reputation in intellectual property litigation by defending a software company in a patent, copyright and trademark infringement case. The case, Jacobsen v. Katzer, was one of the first cases to address the cutting-edge issue of open source software licensing, where Field Jerger’s litigation led to important opinions from both the US District Court in California and the US Court of Appeals for the Federal Circuit. We successfully defended our our client, a significant Japanese importer, against a false patent marking claim in the US District Court in Texas. We also defend and prosecute copyright infringement cases, including cases involving computer downloads of copyrighted images or videos. Trademark Registration and Protection We register trademarks for our clients’ product or services and we help these clients enforce their intellectual property rights in their respective trade or service marks. Transactional IP Work We negotiate agreements for our intellectual property clients with software developers, end-users and content providers.