Inventor · disambiguated record
Dexter R. Plummer
Also filed as: PLUMMER DEXTER R · PLUMMER DEXTER ROBERT · RIDLER KEITH D
10 granted patents·94 citations·filing 1975–1987
89Inventor score
Top patents by PatentIndex Score
10 records- 0184US4528760AClinometerPA CONSULTING SERVICES·Filed 1981·Granted Jul 16, 1985·42 cites·11 claims
- 0254US4149807AMethod of typewriting or printingFACIT AB·Filed 1977·Granted Apr 17, 1979·8 cites·2 claims
- 0351US4320941AOptical compensators for cinematographyPA MANAGEMENT CONSULT·Filed 1979·Granted Mar 23, 1982·4 cites·28 claims
- 0448US3992018AMethod and apparatus for use in cleaning a gramophone discSTRATHEARN AUDIO LTD·Filed 1975·Granted Nov 16, 1976·6 cites·3 claims
- 0547US4200828APivoted arm control arrangementSTREATHERN AUDIO LTD·Filed 1978·Granted Apr 29, 1980·7 cites·5 claims
- 0644US4208589AOptical scannerSCHUMAG GMBH·Filed 1978·Granted Jun 17, 1980·9 cites·21 claims
- 0737US4105961APhonograph pick-up arm control arrangementSTRATHEARN AUDIO LTD·Filed 1975·Granted Aug 8, 1978·4 cites·4 claims
- 0835US4747307ALiquid flow meterFORD MOTOR CO·Filed 1987·Granted May 31, 1988·5 cites·10 claims
- 0933US4059030AMechanical gearingSTRATHEARN AUDIO LTD·Filed 1975·Granted Nov 22, 1977·4 cites·3 claims
- 1032US4032158AMethod and apparatus for indicating angular displacementSTRATHEARN AUDIO LTD·Filed 1975·Granted Jun 28, 1977·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →