Inventor · disambiguated record
Douglas Richards
Also filed as: RICHARDS DOUGLAS · RICHARDS DOUGLAS A
3 granted patents·2 pending applications·169 citations·filing 1990–2020
77Inventor score
Top patents by PatentIndex Score
5 records- 0193US5033586AConstruction elevator assemblyOTIS ELEVATOR CO·Filed 1990·Granted Jul 23, 1991·61 cites·4 claims
- 0290US5065843AMethod for installing elevator system componentsOTIS ELEVATOR CO·Filed 1990·Granted Nov 19, 1991·60 cites·1 claims
- 0387US6279897B1Sheet separator damLEXMARK INT INC·Filed 1999·Granted Aug 28, 2001·48 cites·29 claims
- 0440US2023234363A1Expansion membersHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
- 0537US2023158801A1Expansion membersHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →