Inventor record

JOHNSTONE DAVID

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.

• 91David E. Johnstone10 patent records·1,141 citations·G06Q G07C G07F3 on this record
• 74David Johnstone5 patent records·37 citations·E02F A63H C08J3 on this record

Inventor identities via PatentsView disambiguation — see methodology.