Conversation so far:
What was the inspiration for the character Cosmo Kramer in the show Seinfield?
The character Cosmo Kramer is loosely based on comedian Kenny Kramer, Larry David's ex-neighbor across the hall.
Was Cosmo Kramer always known as Kramer in the show Seinfield?
Cosmo Kramer was originally called Kessler to prevent legal issues since the Seinfeld character was based on writer Larry David's real-life next-door neighbor Kenny Kramer.
Why was the name Kessler changed to Kramer?
Kenny Kramer apparently liked Seinfeld. He permitted Larry David, who was the writer of Seinfeld from seasons 1-7, to use Kramer as Kessler's name.

Question: Did Kenny Kramer do anything significant in response to using his name?
Self-contained rewrite: Did Kenny Kramer do anything significant in response to the show Seinfeld using his name?