Inventor record

BUTLER FREDERICK A

This page previously combined 3different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 69Frederick A. Butler3 patent records·37 citations·E03D1 on this record
• 97Frank T. Sargent23 patent records·538 citations·B60D E03D G01N1 on this record
• 99John M. Antos46 patent records·1,013 citations·E03D F25D Y10T1 on this record

Inventor identities via PatentsView disambiguation — see methodology.