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.
The Federal Circuit's 2004 decision in Superguide v. DirecTV can be influential in determining the fate of a patent's validity based upon a simple test: does your claim recite "OR" or does your claim recite "AND" when listing a series of elements?