Conversation so far:
what did Paul Winchell do medically?
He also worked as a medical hypnotist at the Gibbs Institute in Hollywood.
He developed over 30 patents in his lifetime.
what were some of his patents?
Jarvik.
what was jarvik?
creating Jarvik's artificial heart.

Question: did he have other patents?
Self-contained rewrite: What other patents did Paul Winchell have?