What is the “one patent per invention” rule in 35 U.S.C. 101?
The “one patent per invention” rule is a fundamental principle derived from 35 U.S.C. 101. As explained in MPEP 2104: “35 U.S.C. 101 has been interpreted as imposing four requirements. First, whoever invents or discovers an eligible invention may obtain only ONE patent therefor.“ This rule means that an inventor can obtain only one patent…
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