The concept of the "person of ordinary skill in the art" (POSITA) remains pivotal in patent law, particularly in evaluating obviousness under 35 U.S.C. § 103 and compliance with enablement and written description requirements...more
It is well-established that the availability of a prior art reference is dependent on the “effective filing date” of a patent or patent application. Any practitioner seeking to invalidate a patent knows that the ideal...more
Combining Abstract Ideas Does Not Make Them Less Abstract - In Broadband Itv, Inc. v. Amazon.Com, Inc., Appeal No. 23-1107, the Federal Circuit held that when assessing patent eligibility under 35 U.S.C. § 101, combining two...more
Last week, in Osseo Imaging, LLC v. Planmeca USA Inc., No. 2023-1627 (Fed. Cir. Sept. 4, 2024), the Federal Circuit held that “[a]n expert need not have acquired the skill level prior to the time of the invention to be able...more
The US Court of Appeals for the Federal Circuit clarified that a technical expert does not need to have been a person of ordinary skill in the art (POSITA) at the time of the invention. Instead, they may rely on...more
Before Dyk, Clevenger, and Stoll. Appeal from the United States District Court for the District of Delaware. Summary: An expert witness can testify from the perspective of a POSITA at the time of the invention even if they...more
In part 1 of this series, I introduced the “on sale bar” and described how a commercial sale or offer for sale can negate patentability, according to the doctrine the Supreme Court established in Pfaff v. Wells Elecs., Inc....more