A description of the mark must be included if the mark is not in standard characters. In an application where the mark is in standard characters, a description may be included and must be included if required by the trademark examining attorney. 37 C.F.R. §2.37 73 FR 13784 , Mar. 14, 2008 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