Over the past 20 years, the Federal Circuit’s opinion in SuperGuide Corp. v. DirectTV Enters., Inc., 358 F.3d 870 (Fed. Cir. 2004), which defined the plain and ordinary meaning of the phrase “at least one of” followed by a...more
On April 21, the United States Patent and Trademark Office issued advance notice of proposed rulemaking concerning changes to America Invents Act proceedings before the Patent Trial and Appeal Board. Most of the changes under...more