Inventor record

OPFER JOHN C

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.

• 96John C. Opfer25 patent records·235 citations·H01H F16B G01R25 on this record
• 31John D. Opfer2 patent records·9 citations·A63B H01F1 on this record

Inventor identities via PatentsView disambiguation — see methodology.