Inventor · disambiguated record
John W. Gardner
Also filed as: GARDNER JOHN W · GARDNER JOHN WESLEY
7 granted patents·676 citations·filing 1977–2004
89Inventor score
Files withNOISE CANCELLATION TECH2SHELL OIL CO2ACOUSTICS FIRST CORP1CATERPILLAR TRACTOR CO1HOFFMAN JR ROBERT H1
Top patents by PatentIndex Score
7 records- 0197US5060726AMethod and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communicationSHELL OIL CO·Filed 1990·Granted Oct 29, 1991·346 cites·23 claims
- 0293US5097923AActive sound attenation system for engine exhaust systems and the likeNOISE CANCELLATION TECH·Filed 1989·Granted Mar 24, 1992·112 cites·33 claims
- 0389US5042579AMethod and apparatus for producing tar sand deposits containing conductive layersSHELL OIL CO·Filed 1990·Granted Aug 27, 1991·129 cites·14 claims
- 0487US4106702AFuel injection nozzle tip with low volume tapered sacCATERPILLAR TRACTOR CO·Filed 1977·Granted Aug 15, 1978·35 cites·9 claims
- 0573US5126681AIn-wire selective active cancellation systemNOISE CANCELLATION TECH·Filed 1989·Granted Jun 30, 1992·30 cites·4 claims
- 0663US7314114B2Flat panel diffuserACOUSTICS FIRST CORP·Filed 2004·Granted Jan 1, 2008·20 cites·15 claims
- 0742US4973999AFilm handling arrangements for sheet film view cameras and the likeHOFFMAN JR ROBERT H·Filed 1989·Granted Nov 27, 1990·4 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →