Inventor record

BUTLER JOHN D

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.

• 98John D. Butler33 patent records·720 citations·H02G F16J Y10T31 on this record
• 72Joseph Shaffer6 patent records·23 citations·G02B B24B1 on this record

Inventor identities via PatentsView disambiguation — see methodology.