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8-6. Business Case Problem with Sample Answer- to Patents. The U.S. Patent and Trademark Office (PTO denied Raymond Gianell's application for a pat- ent for a "Rowing Machine"-an exercise machine on which a user pull on handles to per- ry. a. motion against a selected resis- na tance. The PTO considered the device obvious in light of a form a rowing en ns p reiouy patented "Chest Press Apparatus for Exercising 8-6. Business Case Problem with Sample Answer- to Patents. The U.S. Patent and Trademark Office (PTO denied Raymond Gianell's application for a pat- ent for a "Rowing Machine"-an exercise machine on which a user pull on handles to per- ry. a. motion against a selected resis- na tance. The PTO considered the device obvious in light of a form a rowing en ns p reiouy patented "Chest Press Apparatus for Exercising