What is relative terminology in patent claims?

Relative terminology in patent claims refers to language that uses terms of degree or comparative expressions. According to the Manual of Patent Examining Procedure (MPEP) 2173.05(b), “The use of relative terminology in claim language, including terms of degree, does not automatically render the claim indefinite under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second…

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How can an applicant overcome an indefiniteness rejection based on relative terminology?

An applicant can overcome an indefiniteness rejection based on relative terminology in several ways. According to MPEP 2173.05(b), “During prosecution, an applicant may overcome an indefiniteness rejection by providing evidence that the meaning of the term of degree can be ascertained by one of ordinary skill in the art when reading the disclosure.” This can…

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How does the MPEP treat terms of degree in patent claims?

The MPEP addresses terms of degree in patent claims in MPEP 2173.05(b). Terms of degree are relative terms that require careful consideration to determine if they are definite. The MPEP states: “Terms of degree are not necessarily indefinite. […] If the specification does not provide some standard for measuring that degree, a determination must be…

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How is the term “substantially” interpreted in patent claims?

The term “substantially” in patent claims is often used to describe a particular characteristic of the claimed invention. According to MPEP 2173.05(b), it is considered a broad term. The interpretation depends on the context and the guidance provided in the specification. For example, in In re Nehrenberg, the limitation “to substantially increase the efficiency of…

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