The information which is required by a patent attorney to prepare a patent application is essentially an identification of the inventor(s) setting forth the inventor's full name, citizenship and address and a description of the invention showing precisely how the invention works. In connection with the description it is generally necessary to include sketches or schematics showing an actual embodiment of the invention.

The basic requirements of obtaining a patent are that the invention must be novel, useful, and not obvious to one skilled in the particular inventive field. An invention requires two separate parts: concept (the idea) and reduction to practice. It should be noted that the filing of a patent application constitutes a constructive reduction to practice.