Inventor record

RATCLIFFE DAVID J

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.

• 33David J. Ratcliffe, Deceased1 patent record·11 citations·G09G1 on this record
• 18David J. Ratcliffe1 patent record·2 citations·F16B1 on this record

Inventor identities via PatentsView disambiguation — see methodology.