tsdr.uspto.gov

1Y7D TIL the Law & Order sound is trademarked, and described as “two musical notes, a strike and a rapid rearticulation of a perfect fifth pitch interval, which in the key of C sounds the notes C and G, struck concurrently”
LPGd TIL the Tarzan Yell is trademarked (officially known as a Sensory Mark). “The mark is a yell consisting of a series of approximately ten sounds…” It takes over 200 words to technically describe how Tarzan yells.