Why are single means claims often rejected?

Single means claims are often rejected due to enablement issues under 35 U.S.C. 112(a). The MPEP explains: In re Hyatt, 708 F.2d 712, 714-715, 218 USPQ 195, 197 (Fed. Cir. 1983) (A single means claim which covered every conceivable means for achieving the stated purpose was held nonenabling for the scope of the claim because…

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