How does 35 U.S.C. 112(f) interact with other requirements of 35 U.S.C. 112?

While 35 U.S.C. 112(f) permits a particular form of claim limitation, it does not create exceptions to other requirements of 35 U.S.C. 112. The MPEP states:

“While 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, permits a particular form of claim limitation, it cannot be read as creating an exception either to the description, enablement or best mode requirements of 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph or the definiteness requirement of 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph.”

This means that even if a claim uses means-plus-function language, it must still meet all other requirements of 35 U.S.C. 112, including enablement, written description, and definiteness.

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Topics: First Or Second Paragraphs, MPEP 2100 - Patentability, MPEP 2185 - Related Issues Under 35 U.S.C. 112(A) Or (B) And Pre - Aia 35 U.S.C. 112, Patent Law, Patent Procedure
Tags: 35 U.S.C. 112(F), Definiteness, Enablement, means-plus-function, Written Description