Read the full post at Post-Grant Counsel
On October 4, 2017, the Court of Appeals for the Federal Circuit, sitting en banc, overruled an earlier panel decision and found that the Patent Trial and Appeal Board (PTAB) had been impermissibly placing the burden of proving the patentability of amended claims on the Patent Owner, rather than the Petitioner. See, Aqua Products v. Matel, 2015-1177.
In four separate opinions spanning 148 pages, the eleven judges expressed their views on the PTAB amendment practice. Despite differing rationales, it is clear that a majority of the Federal Circuit judges were exasperated by the way the U.S. Patent and Trademark Office (USPTO) has been considering claim amendments in the new administrative trial procedures provided by the America Invents Act (AIA).