Inventor record

BUTLER JOHN F

This page previously combined 2different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 92John F. Butler24 patent records·219 citations·G01N C21D C23C11 on this record
• 73John Robert Butler7 patent records·21 citations·C22C C22F B22D1 on this record

Inventor identities via PatentsView disambiguation — see methodology.