FRANS NOOREN AFDICHTINGSSYSTEM v. STOPAQ AMCORR INC. (Fed. Cir. 2014) (P) – Prosecution history disclaimer / estoppel based on examiner commentary on the prior art

An examiner’s interpretation of the prior art by itself is not sufficient to warrant prosecution history disclaimer or estoppel. Background / Facts: The patent being asserted here is directed to protecting substrates – for example, manhole covers, underground tanks,...

SOLVAY, S.A. v. HONEYWELL INTERNATIONAL (Fed. Cir. 2014) (P) – Invention conceived by a foreign inventor and reduced to practice in the U.S. as prior art under § 102(g)(2)

The doctrine of inurement, defining when the activities of others inure to the benefit of an inventor, does not require that the prior inventor under § 102(g)(2) expressly request or direct a non-inventor reducing the invention to practice to perform the reductive...

TEMPO LIGHTING, INC. v. TIVOLI, LLC (Fed. Cir. 2014) (P) – Prosecution history in claim interpretation at the PTO & third-party requester cross-appeals

(1) Prosecution history serves as intrinsic evidence for purposes of claim construction even “in construing patent claims before the PTO,” such that an “examiner err[s] by resorting to extrinsic evidence that [is] inconsistent with the more reliable intrinsic...