Business method patents have a checkered history. They were once very much in vogue—numerous such patents issued, and many of them were litigated. Then, about two years ago, Congress enacted a special procedure that made it...more
The America Invents Act (AIA), passed in September 2011, provides additional procedures to challenge the validity of patents in the U.S. Patent and Trademark Office (USPTO). These “post grant” procedures are far less...more