>I was about to ask under what classes IETF registrations are held? No need to ask when the answer is a few clicks away at uspto.gov. The IETF has two trademark registrations, #78755455 on the term IETF, and #78755496 on the logo. Both are in the same three classes, one cancelled and two active: (CANCELLED) IC 009. US 021 023 026 036 038. G & S: [ CD-ROMs containing technical, design, engineering, management and administrative information in the field of standards and best practices development for the development and evolution of the Internet ]. FIRST USE: 19970831. FIRST USE IN COMMERCE: 19970831 IC 035. US 100 101 102. G & S: Providing information services and an Internet website containing information about administrative, management, and business standards and best practices for promoting the development and evolution of the Internet. FIRST USE: 20011231. FIRST USE IN COMMERCE: 20011231 IC 042. US 100 101. G & S: Providing information services and an Internet website containing information about technical, engineering, and design standards and best practices for the development and evolution of the Internet. FIRST USE: 20011231. FIRST USE IN COMMERCE: 20011231 IETF SECRETARIAT is in two areas: IC 035. US 100 101 102. G & S: Providing administrative, and management support services in the field of standards related activities to facilitate the development and evolution of global computer networks. FIRST USE: 19990714. FIRST USE IN COMMERCE: 19990714 IC 042. US 100 101. G & S: Providing technical coordination support services for standards related activities to facilitate the development and evolution of global computer network. FIRST USE: 19990714. FIRST USE IN COMMERCE: 19990714 Did the IETF ever distribute CD-ROMS? Not that I recall, but I'm a relative newcomer. R's, John