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805    Effect of Improper Joinder in Patent [R-08.2012]

35 U.S.C. 121, last sentence, provides “the validity of a patent shall not be questioned for failure of the Director to require the application to be restricted to one invention.” In other words, under this statute, no patent can be held void for improper joinder of inventions claimed therein.

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Last Modified: 03/27/2014 10:10:36