Inventor record

SIMPSON DAVID L

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.

• 97David L. Simpson33 patent records·297 citations·E05B E21B Y10T28 on this record
• 95David L. Simpson19 patent records·579 citations·G01R G06F H04N13 on this record

Inventor identities via PatentsView disambiguation — see methodology.