Why are omnibus claims rejected in patent applications?

Omnibus claims are typically rejected in patent applications because they are considered indefinite. The MPEP 2173.05(r) states: “This claim should be rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, because it is indefinite in that it fails to point out what is included or excluded by the claim language.” In other…

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What makes a Markush grouping proper?

A Markush grouping is considered proper if the members of the group share both: A “single structural similarity” A common use This requirement can be met in two ways: The alternatives are all members of the same recognized physical or chemical class or the same art-recognized class, and are disclosed in the specification or known…

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