Here is an update on recent en banc activity at the Federal Circuit in patent cases. Highlights include new petitions filed in four cases raising questions related to claim construction, persons who may petition for post-issuance review proceedings, and jurisdiction; three new responses to petitions raising questions related to venue, eligibility, non-obviousness, and claim construction; and the denial of petitions in six cases raising questions related to the Appointments Clause, non-obviousness, and eligibility. Here are the details