The Federal Circuit has long held that “the general rule” of patent infringement damages law is “a patentee may not claim, as its own damages, the lost profits of a related company.” More than 15 years ago, one patent owner argued that an exception to this general rule should be when a subsidiary’s profits “flow…

Wash World Inc. v. Belanger Inc. raises the question whether lost profit damages for patent infringement can extend to profits related to unpatented products sold with a patented product. As with many legal issues, including the lost profits issue I addressed in my recent post, the answer to the question is “sometimes.”

In Wash…

Ackerman v. Pink asks how much of a written history can be claimed as proprietary by the author of that history.   The answer:  Not much.  It is black letter that the author of a non-fiction work cannot prevent others from using historical facts in some other work – even if those historical facts are known…

The Supreme Court’s decision in Loper Bright Enterprises v. Raimondo has and will continue to alter the legality and enforceability of federal agency rules and regulations related to ambiguous federal statutes. As a reminder, Loper Bright abolished the Chevron doctrine, which instructed courts to give deference to federal agency interpretations of ambiguous statutes. In Loper Bright,…

In the UK, intellectual property (IP) infringement claims and other disputes in which IP is a major concern can be brought in either the High Court or in many cases the specialist Intellectual Property Enterprise Court (IPEC). Based at the Rolls Building in central London, the IPEC has a more streamlined procedure than the High…

Lost profit damages are notoriously difficult to recover in patent infringement cases. Lost profits damages are recovered in only a small percentage of cases that go to trial. Among the challenges in recovering lost profits under the Panduit test are that the patent owner must prove the absence of acceptable non-infringing alternatives (Panduit factor 2)…