501.04 Foreign Assignee May Designate Domestic Representative
15 U.S.C. §1060(b)
An assignee not domiciled in the United States may designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark. Such notices or process may be served upon the person so designated by leaving with that person or mailing to that person a copy thereof at the address specified in the last designation so filed. If the person so designated cannot be found at the address given in the last designation, or if the assignee does not designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark, such notices or process may be served upon the Director.
37 C.F.R. §3.61
If the assignee of a patent, patent application, trademark application or trademark registration is not domiciled in the United States, the assignee may designate a domestic representative in a document filed in the United States Patent and Trademark Office. The designation should state the name and address of a person residing within the United States on whom may be served process or notice of proceedings affecting the application, patent or registration or rights thereunder.
An assignee not domiciled in the United States may designate, by a document filed with the USPTO, the name and address of a domestic representative (i.e., a person residing in the United States on whom notices or process in proceedings affecting the application or registration may be served). 15 U.S.C. §§1051(e), 1058(f), 1059(c), 1060(b); 37 C.F.R. §3.61.
When an assignee designates a domestic representative, the designation should be made in Assignment Center or the paper cover sheet. No separate document designating a domestic representative is required. However, if the assignee wishes the Trademark database to reflect the domestic representative information, the assignee should send a separate request to the USPTO for each registration or application to which an assignment pertains, using the TEAS Change Address or Representation form. 37 C.F.R. §2.193(g). See TMEP §610 regarding general information about designating a domestic representative.