How does adding a specific limitation to a claim affect its scope?

Adding a specific limitation to a claim typically narrows its scope. According to MPEP 2163.05:

“The introduction of claim changes which involve narrowing the claims by introducing elements or limitations which are not supported by the as-filed disclosure is a violation of the written description requirement of 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph.”

This means that while adding a limitation can narrow a claim’s scope, it must be supported by the original disclosure to avoid violating the written description requirement.

To learn more:

• claim limitations
• written description requirement
• narrowing claims