Reduction to practice

In United States patent law, the reduction to practice is a concept meaning the embodiment of the concept of an invention. The date of this embodiment was critical to the determination of priority between inventors in an interference proceeding under for patents granted under the discontinued first-to-invent system.

Conception is the "formation in the mind of the inventor, of a definite and permanent idea of the complete and operative invention, as it is hereafter to be applied in practice." Hybritech Inc. v. Monoclonal Antibodies, Inc., 802 F.2d 1367, 1376 (Fed. Cir. 1986) (quoting 1 Robinson On Patents 532 (1890).

The embodiment of an invention can either be:

Some types of evidence

In addition to an inventor's notebook, several additional kinds of evidence can be used to establish an earlier priority date.

Disclosure Document Program

The Disclosure Document Program (DDP) was a USPTO program that allowed an inventor to file a preliminary description of his/her invention. The program was discontinued by the USPTO as of February 1, 2007, in favor of filing a provisional application. The USPTO says:

A provisional application for patent provides more benefits and protections to inventors than a disclosure document and can be used for the same purposes as a disclosure document if necessary. . . .A non-provisional application must be filed within twelve months of the filing date of a provisional patent in order for the inventor to claim the benefit of the provisional application....[1]

References


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