On March 26, 2025, the Acting Director of the United States Patent and Trademark Office fundamentally changed how the Patent Trial and Appeal Board (“PTAB”) initially considers petitions in post grant proceedings under the...more
Prior art patents and publications have long been the primary source for anticipation and obviousness assertions by defendants in IP litigation. System art—an actual system or device—is a less common source of prior art due...more
Earlier this month, the Federal Circuit decided a subject matter eligibility case closely watched in the pharmaceutical industry. The case involved composition-of-matter claims reciting measured results. Reversing the...more
Administrative agencies long enjoyed deference from the courts under Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837 (1984). Chevron required courts to give leeway to agencies interpreting...more