What is the difference between inherent and implied antecedent basis in patent claims?

In patent claims, there are two types of acceptable antecedent basis that don’t require explicit introduction: inherent and implied antecedent basis. Inherent antecedent basis occurs when the claim element is necessarily present in the claimed subject matter. For example, “the outer surface” of a sphere doesn’t need explicit introduction because a sphere inherently has an…

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Can inherent components have antecedent basis without explicit mention?

Yes, inherent components of elements recited in a claim can have antecedent basis without explicit mention. The MPEP 2173.05(e) provides an example: “Inherent components of elements recited have antecedent basis in the recitation of the components themselves. For example, the limitation ‘the outer surface of said sphere’ would not require an antecedent recitation that the…

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What information is included in an Inter Partes Reexamination Certificate?

An Inter Partes Reexamination Certificate contains specific information about the reexamined patent. MPEP 2690 outlines the following details: The title “INTER PARTES REEXAMINATION CERTIFICATE” An ordinal number indicating its sequence The original patent number followed by a kind code suffix The date of issuance The title of the invention Name of the inventor Current classification…

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What makes a claim indefinite under 35 U.S.C. 112(b)?

A claim can be considered indefinite under 35 U.S.C. 112(b) if it creates confusion about when direct infringement occurs. The MPEP 2173.05(p) provides an example from the In re Katz case: “A single claim which claims both an apparatus and the method steps of using the apparatus is indefinite under 35 U.S.C. 112(b) or pre-AIA…

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