Inventor · disambiguated record
David Ritchie
Also filed as: RITCHIE DAVID · RITCHIE DAVID G · RITCHIE DAVID M
2 granted patents·1 pending application·148 citations·filing 1990–2018
67Inventor score
Top patents by PatentIndex Score
3 records- 0187US5069885APhotocatalytic fluid purification apparatus having helical nontransparent substrateRITCHIE DAVID G·Filed 1990·Granted Dec 3, 1991·137 cites·12 claims
- 0286US10486958B1Follower plate geometryIntegrated Dispense Solutions·Filed 2018·Granted Nov 26, 2019·11 cites·20 claims
- 0331US2006228265A1Particulate separation filters and methodsPENG SEAN X·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →