U.S. federal trademark · Serial No. 75020709 · Reg. No. 2052149
stereo amplifiers, cross-overs (electronic and passive)[, preamps/line amps/buffer amps, digital signal processors, surround sound encoder/decorders, equalizers, digital to analog converters, radio and sound interfaces for electronic systems, balanced line transmitters/receivers;] all for use in in-car entertainment systems
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.