What are the three requirements for a patent specification under 35 U.S.C. 112(a)?

The three requirements for a patent specification under 35 U.S.C. 112(a) are:

  • Written description
  • Enablement
  • Best mode

As stated in the MPEP: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. This means that the specification must describe the invention, enable someone skilled in the art to make and use it, and disclose the best way to carry out the invention known to the inventor.

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Topics: First Paragraph, MPEP 2100 - Patentability, MPEP 2161 - Three Separate Requirements For Specification Under 35 U.S.C. 112(A) Or Pre - Aia 35 U.S.C. 112, Patent Law, Patent Procedure
Tags: 35 u.s.c. 112(a), Best Mode, Enablement, Patent Specification, Written Description