Inventor record

CALLAHAN JOHN R

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.

• 74John Raymond Callahan6 patent records·68 citations·A63F B66F G07F4 on this record
• 60John F. Callahan3 patent records·28 citations·B65D G16H H04L1 on this record

Inventor identities via PatentsView disambiguation — see methodology.