Confusion Resurfaces: Switching Sides?

In re Iwahashi (CAFC 1989) - held that if the algorithm appears to be implemented in a specific manner to define structural relationships between physical elements or to refine or limit claim steps, the claim is patentable subject matter.
- But, referred to the F-W test, and ignored Abele
- So, applied different test 4 days after Gram.
- 1st software apparatus (machine) claim.

In re Iwahashi (CAFC 1989) - held that if the algorithm appears to be implemented in a specific manner to define structural relationships between physical elements or to refine or limit claim steps, the claim is patentable subject matter.