1207.01(d)(xi) Family of Marks
A family of marks is defined as "a group of marks having a recognizable common characteristic, wherein the marks are composed and used in such a way that the public associates not only the individual marks, but the common characteristic of the family, with the trademark owner." J & J Snack Foods Corp. v. McDonald’s Corp., 932 F.2d 1460, 1462, 18 USPQ2d 1889, 1891 (Fed. Cir. 1991). The common element may be a term, a phrase, or a component in the nature of a prefix or suffix.
The family of marks doctrine may be invoked by a plaintiff in inter partes proceedings relating to likelihood of confusion, but is not available to a defendant as a defense against an opposer’s or applicant’s intervening rights. Baroid Drilling Fluids Inc. v. Sun Drilling Prods., 24 USPQ2d 1048 (TTAB), amended by 1992 TTAB LEXIS 27 (TTAB 1992).
Moreover, a family of marks argument is not available to an applicant seeking to overcome a likelihood of confusion refusal in an ex parte proceeding; instead, the focus of the likelihood of confusion analysis must be on the mark applicant seeks to register, not other marks applicant may have used or registered. In re Cynosure, Inc., 90 USPQ2d 1644, 1645 (TTAB 2009); see also In re Ald, Inc., 148 USPQ 520, 521 (TTAB 1965) ("[I]n view of the specific prohibition of Section 2(d)..., the fact that applicant may possess a ‘family’ of marks characterized by the term ‘ALD’ is of no particular significance herein if the mark for which applicant now seeks registration... is confusingly similar to the previously registered mark....").
It has also been noted that, in ex parte proceedings, examining attorneys do not have access to the evidence and information needed to establish whether a family of marks exists. In re Mobay Chem. Co., 166 USPQ 218, 219 (TTAB 1970). Therefore, examining attorneys should refrain from invoking the family of marks doctrine or from referring to a family of marks in a likelihood of confusion analysis. See In re Hitachi High-Techs. Corp., 109 USPQ2d 1769, 1772 (TTAB 2014); In re Mobay Chem. Co., 166 USPQ at 219.
See TMEP §1212.06(e)(v) regarding the use of evidence of a family of marks to support of a claim of acquired distinctiveness.