The Patent Trial and Appeal Board determined that a reference could be used as prior art because patent owner failed to provide sufficient evidence that the prior art’s disclosure was invented by all four named inventors, and...more
In an appeal from the United States District Court for the Western District of Washington, the Federal Circuit confirmed that on the issue of inter partes review (IPR) estoppel, the burden of proof rests on the patentee to...more
The Eastern District of Texas has rejected a plaintiff’s argument that if a patent owner concedes in an inter partes review (IPR) that a prior art reference discloses all elements of a patent claim, the reference necessarily...more
The Federal Circuit recently addressed whether the Patent Trial and Appeal Board (PTAB) can institute inter partes review (IPR) on a ground not advanced by the petitioner, as well as whether the general knowledge of a person...more
The Federal Circuit vacated and remanded the Patent Trial and Appeal Board’s (PTAB) decisions in two inter partes review (IPR) proceedings, finding that the PTAB applied the wrong standard when it presumed there was a nexus...more