Inventor · disambiguated record
David Ritchie
Also filed as: RITCHIE DAVID · RITCHIE DAVID A
5 granted patents·132 citations·filing 1978–2016
80Inventor score
Top patents by PatentIndex Score
5 records- 0183US4216831AGolf club attachment for raking sand traps and retrieving golf ballsRITCHIE DAVID A·Filed 1979·Granted Aug 12, 1980·43 cites·11 claims
- 0283US4141222AEnergy recovery system for refrigeration systemsWEATHERKING INC·Filed 1978·Granted Feb 27, 1979·56 cites·9 claims
- 0372US5596948AAnimal urine collection and analysis system and its method of useRALSTON PURINA CO·Filed 1995·Granted Jan 28, 1997·32 cites·40 claims
- 0453US9724329B2Stimulating immune responseHSU ANDY KANG-WEI·Filed 2011·Granted Aug 8, 2017·1 cites·5 claims
- 0533US11171848B2Network switchVERACITY UK LTD·Filed 2016·Granted Nov 9, 2021·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →