The U.S. Supreme Court’s decision in the case of U.S. v. Arthrex might be seen as having fully resolved the interaction between the Appointments Clause and the inter partes review (IPR) process, but there are other controversies brewing, nonetheless. Patent attorney James Lovsin, of McDonnell Boehnen Hulbert & Berghoff LLP (MBHB), said on an Aug. 17 webinar that because the current commissioner of patents is only an acting commissioner, his review of IPRs may also be a violation of the Appointments Clause, thus invoking the possibility that some patent cases will be subject to additional administrative delays.