37 C.F.R. § 1.43 When the inventor is insane or legally incapacitated.
Title 37 - Patents, Trademarks, and Copyrights
In case an inventor is insane or otherwise legally incapacitated, the legal representative (guardian, conservator, etc.) of such inventor may make the necessary oath or declaration, and apply for and obtain the patent. (35 U.S.C. 6, Pub. L. 97–247) [48 FR 2709, Jan. 20, 1983]
Title 37: Patents, Trademarks, and Copyrights
PART 1—RULES OF PRACTICE IN PATENT CASES
Subpart B—National Processing Provisions
Who May Apply for a Patent
§ 1.43 When the inventor is insane or legally incapacitated.