Prior registrations of the same or similar marks owned by the applicant should be identified in the application if the owner(s) last listed in Office records of the prior registrations differs from the owner(s) listed in the application.
37 C.F.R. §2.36
Part 3 pertaining to both patents and trademarks is placed in the grouping pertaining to patents regulations.
Part 4 is placed in the separate grouping of parts pertaining to patents regulations.
Part 5 is placed in the separate grouping of parts pertaining to patents regulations.