[Code of Federal Regulations] [Title 37, Volume 1] [Revised as of July 1, 1999] From the U.S. Government Printing Office via GPO Access [CITE: 37CFR1.44] [Page 32] TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS CHAPTER I--PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE PART 1--RULES OF PRACTICE IN PATENT CASES--Table of Contents Subpart B--National Processing Provisions Sec. 1.44 Proof of authority. In the cases mentioned in Secs. 1.42 and 1.43, proof of the power or authority of the legal representative must be recorded in the Patent and Trademark Office or filed in the application before the grant of a patent. (35 U.S.C. 6, 111, 116, 117, 118)