Inventor · disambiguated record
Douglas R. Johnson
Also filed as: JOHNSON DOUGLAS R · JOHNSON DOUGLAS RENE
21 granted patents·4 pending applications·630 citations·filing 1985–2024
96Inventor score
Top patents by PatentIndex Score
25 records- 0194US8029401B2Split path power shift transmissionDEERE & CO·Filed 2008·Granted Oct 4, 2011·26 cites·22 claims
- 0293US5289137ASingle supply operational amplifier and charge pump deviceTEXAS INSTRUMENTS INC·Filed 1993·Granted Feb 22, 1994·123 cites·24 claims
- 0391US7025675B2Video game characters having evolving traitsDIGENETICS INC·Filed 2003·Granted Apr 11, 2006·159 cites·32 claims
- 0491US6440026B1Hydro-mechanical transmissionDEERE & CO·Filed 2000·Granted Aug 27, 2002·42 cites·19 claims
- 0591US5203616AElectrohydraulic parking brake control systemDEERE & CO·Filed 1992·Granted Apr 20, 1993·47 cites·13 claims
- 0688US6504474B1Method and apparatus for detecting a restricted or bypassed transmission oil filterDEERE & CO·Filed 2000·Granted Jan 7, 2003·33 cites·3 claims
- 0787US6485387B1Apparatus and method for determining the output speed of a hydrostatic unit in a hydro-mechanical transmissionDEERE & CO·Filed 2000·Granted Nov 26, 2002·32 cites·14 claims
- 0881US4830159AMulti-disk synchronizerDEERE & CO·Filed 1988·Granted May 16, 1989·28 cites·29 claims
- 0980US7084876B1Method for presenting a virtual reality environment for an interactionDIGENETICS INC·Filed 2003·Granted Aug 1, 2006·46 cites·88 claims
- 1079US7588510B2Hydro-mechanical transmission and valve assemblyDEERE & CO·Filed 2006·Granted Sep 15, 2009·8 cites·14 claims
- 1169US5117702APowershift transmission for an agricultural tractorDEERE & CO·Filed 1991·Granted Jun 2, 1992·26 cites·13 claims
- 1264US6453668B1Transmission with cold start valveDEERE & CO·Filed 2000·Granted Sep 24, 2002·10 cites·1 claims
- 1360US7993230B2Dual path hydromechanical powertrainDEERE & CO·Filed 2008·Granted Aug 9, 2011·4 cites·8 claims
- 1460US5064040ASplined clutch drum mountingDEERE & CO·Filed 1991·Granted Nov 12, 1991·20 cites·6 claims
- 1556US6935445B2Back-up steering system for track laying vehiclesDEERE & CO·Filed 2003·Granted Aug 30, 2005·10 cites·21 claims
- 1654US8522822B2Hydro-mechanical transmission and valve assemblyJOHNSON DOUGLAS R·Filed 2009·Granted Sep 3, 2013·1 cites·4 claims
- 1752US6533694B1Hydro mechanical transmission planetary carrier support systemDEERE & CO·Filed 2000·Granted Mar 18, 2003·5 cites·4 claims
- 1852US2025361002A1Integrated active sidestick and fly-by-wireROCKWELL COLLINS INC·Filed 2024·Application pending·0 cites
- 1951US6729454B2Transmission with a two-step actuator valveDEERE & CO·Filed 2002·Granted May 4, 2004·5 cites·7 claims
- 2044US2002082065A1Video game characters having evolving traitsFiled 2000·Application pending·0 cites
- 2142US8617024B2Axle final drive assemblyJOHNSON DOUGLAS RENE·Filed 2009·Granted Dec 31, 2013·1 cites·7 claims
- 2242US2002082077A1Interactive video game system with characters that evolve physical and cognitive traitsFiled 2000·Application pending·0 cites
- 2342US2021326700A1Neural network optimizationGENOTAUR INC·Filed 2021·Application pending·0 cites
- 2431US5545973ACurrent generator for integrated circuits and method of constructionTEXAS INSTRUMENTS INC·Filed 1994·Granted Aug 13, 1996·2 cites·15 claims
- 2520US4610350APackaging for paperJOHNSON DOUGLAS R·Filed 1985·Granted Sep 9, 1986·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →