Arrhythmia v. Corazonix (CAFC 1992)
Applied the F-W-A test to process claims
- Found there was an algorithm.
- Emphasizing the physicality of the input & output signals, found that the algorithm was applied to physical process steps.
- So, patentable subject matter.
Apparatus claims - emphasizes physicality, finds them patentable
- Doesn’t apply F-W-A test (or any other).