domestic representative
Intellectual Property
a person residing within the United States who is appointed by a patentee or assignee of a trademark application or registration that does not reside in or is not domiciled within the United States. A domestic representative may be served process or notice of proceedings affecting the application, patent or trademark registration, or related rights.
--see 35 USC 293, 37 CFR 3.61 and MPEP 302.02 for more