What is the significance of the In re Kerkhoven case in patent law?
The In re Kerkhoven case is significant in patent law as it established a key principle regarding the combination of known elements. As cited in MPEP 2144.06, the case states: “It is prima facie obvious to combine two compositions each of which is taught by the prior art to be useful for the same purpose,…
Read MoreHow does combining equivalents affect patent obviousness?
Combining equivalents can affect patent obviousness by making a new composition or method prima facie obvious. According to MPEP 2144.06: “It is prima facie obvious to combine two compositions each of which is taught by the prior art to be useful for the same purpose, in order to form a third composition to be used…
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