File patent - Patent Drawing
Wednesday, February 6th, 2008Free searchable databases; includes the U.S. Patent Bibliographic Database and the AIDS Patent Database.
Patent drawing is a requirement by law for patent applications in order to understand the nature of the invention. The Commissioner may require patent drawing where the nature of the subject matter admits of it; these patent drawing must be filed with the application. This includes practically all inventions except compositions of matter or processes, but patent drawing may also be useful in the case of many processes.

