Here is an update on recent en banc activity at the Federal Circuit. In the only pending en banc case, a veterans case, five new amicus brief were filed in support of the appellant. As for requests for rehearing en banc in patent cases, the court received four new petitions raising questions relating to patent eligibility and claim construction. The court also invited a response to a petition that raised questions concerning the court’s handling of petitions for writs of mandamus seeking transfer in patent cases. Finally, the court received a response to a petition raising a question related to the appropriate timing of a notice of an interlocutory appeal. Here are the details.