Inventor record

FREY ROBERT J

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.

• 61Robert J. Frey3 patent records·9 citations·E21B H01H2 on this record
• 90Frank J. Graninger10 patent records·221 citations·H01H H01R1 on this record

Inventor identities via PatentsView disambiguation — see methodology.