Inventor record

CALLAHAN JOHN

This page previously combined 6different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 98John W. Callahan52 patent records·996 citations·H04N G06F G06Q15 on this record
• 89John Callahan10 patent records·96 citations·H01S H10W B65D9 on this record
• 84John P. Callahan7 patent records·102 citations·C23C B32B F01N2 on this record
• 81John Herman Callahan5 patent records·196 citations·A01D B65B C23C2 on this record
• 74John Raymond Callahan6 patent records·68 citations·A63F B66F G07F1 on this record
• 97John M. Callahan32 patent records·495 citations·G11C H03K H10W1 on this record

Inventor identities via PatentsView disambiguation — see methodology.