903.05 First Use by Predecessor or Related Company
If the first use anywhere or the first use in commerce was by a predecessor in title to the applicant, or by a related company of the applicant (see 15 U.S.C. §§1055, 1127), and the use inures to the benefit of the applicant, the dates of first use may specify that the use on this date was by the applicant’s predecessor in title, or by a related company of the applicant, as the case may be. See 37 C.F.R. §2.38(a). It is generally not necessary to give the name of the predecessor in title or the related company.
See TMEP §§1201.03–1201.03(e) regarding current use by a party other than the applicant.