"Congress shall have power... to promote the progress of Science and useful Arts,
by securing for limited times to authors and inventors the exclusive rights
to their respective writings and discoveries"
-Manual for Patent Examination and Procedure (MPEP)

-Code of Federal Regulations; Title 37, Patents, Trademarks and Copyrights

-United States Code: Title 35, Patents

-United States Constitution: Article I, Section 8, Clause 8