Inventor record

SPERRY JOHN S

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.

• 86John S. Sperry6 patent records·194 citations·E21B F02G F22B5 on this record
• 97Richard W. Krajicek23 patent records·752 citations·E21B B08B B23P1 on this record

Inventor identities via PatentsView disambiguation — see methodology.