Federal Circuit Ruling Clarifies Patent Law Nuances: Anticipation, Teaching Away, and Commercial Success

In a recent judicial development, the US Court of Appeals for the Federal Circuit has validated the Patent Trial & Appeal Board’s (PTAB) decision to invalidate two patents, signifying essential repercussions in the world of patent law. The ruling imparts that no disparagement does not amount to a “teaching away”, and free samples cannot testify to commercial success. (read more)

The case, titled Incept LLC v. Palette Life Sciences, Inc., (Case Nos. 21-2063; -2065, Fed. Cir. Aug. 16, 2023), features two key aspects.

  1. The first patent was dismissed as “anticipated because the disclosure of a genus had anticipated the claimed species.” This rejection reveals an important interpretation of anticipation in patent law. While a claim is said to be anticipated if each and every element is found within a single prior art reference, this ruling shows that a more broad or genus disclosure can predict a later, more specific species claim.
  2. The second invalidated patent was targeted because the prior art did not defame the claimed invention, thus was not considered a teaching away. The concept of ‘teaching away’ in patent law refers to a suggestion, or discouragement in a prior art reference against an invention. This decision indicates that any absence of negative commentary doesn’t equal a lack of teaching away.

In addition to the patent invalidations, the court also determined that free samples cannot be used to demonstrate commercial success. This decision underscores that commercial success, as pertaining to patent law, must be substantiated with concrete financial data and mere distribution of free samples doesn’t qualify.

Overall, this ruling serves as a pivotal reminder of how precise court interpretations can dramatically affect patent validity and litigation tactics. It underscores not only the importance of careful patent drafting, but also the crucial understanding of nuanced legal principles by patent counsel.

This case is one among many that continue to shape and restructure our understanding of patent law, highlighting the critical necessity for legal professionals to stay updated in this rapidly evolving field.