What is undue multiplicity in patent claims?

Undue multiplicity in patent claims refers to an unreasonable number of repetitious and multiplied claims that confuse rather than clarify the invention. As stated in MPEP 2173.05(n): “Where, in view of the nature and scope of applicant’s invention, applicant presents an unreasonable number of claims which are repetitious and multiplied, the net result of which…

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How do examiners handle undue multiplicity in patent applications?

Patent examiners handle undue multiplicity in patent applications through a specific procedure outlined in MPEP 2173.05(n): The examiner contacts the applicant by telephone, explaining that the claims are unduly multiplied. The examiner requests that the applicant select a specified number of claims for examination. If the applicant complies, the examiner makes an undue multiplicity rejection…

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