Posts Tagged: "Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co"

Anticipation can arise when the disclosure of a limited number of alternative combinations discloses the one that is claimed. However, a reference does not anticipate because an artisan would immediately envision a missing limitation… In Kennametal, the challenged claim required a ruthenium binding agent and a PVD coating to be used together. The prior art reference disclosed five binding agents (including ruthenium) and three coating techniques (including PVD), and taught that any binding agents could be used with any coatings. Thus, Kennametal held that the reference effectively taught fifteen combinations, one of which anticipated the challenged claim. A limited number of possible combinations effectively disclosed one of them. Kennametal does not hold that a reference can anticipate a claim if a skilled artisan would “at once envisage” the missing limitation. As a result, the Court reversed the Board’s finding of anticipation.