Inventor record

RIDGWAY DOUGLAS

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.

• 78Douglas Ridgway10 patent records·7 citations·E21B G01V G01K9 on this record
• 57Douglas Ridgway6 patent records·1 citations·E21B C07D C12N4 on this record

Inventor identities via PatentsView disambiguation — see methodology.