Inventor record

MACFADDEN JOHN A

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.

• 65John A. Macfadden3 patent records·15 citations·G01R G01D2 on this record
• 74Joseph M. Keever4 patent records·36 citations·G01R G01D H02B1 on this record

Inventor identities via PatentsView disambiguation — see methodology.