Inventor · disambiguated record
Roger D. Stephenson
Also filed as: STEPHENSON ROGER · STEPHENSON ROGER D · STEPHENSON ROGER DALE
30 granted patents·545 citations·filing 1984–2017
97Inventor score
Top patents by PatentIndex Score
30 records- 0197US4738461AImplement hitch adaptor and transmission assembly for allowing towing tractor to turn sharplyDEERE & CO·Filed 1987·Granted Apr 19, 1988·106 cites·17 claims
- 0291US5427192ASliding pedestal shaft for PTO driven implementsDEERE & CO·Filed 1992·Granted Jun 27, 1995·71 cites·10 claims
- 0388US7047714B1Tongue swing cylinder arrangement for rotary side-pull mower-conditionerDEERE & CO·Filed 2005·Granted May 23, 2006·38 cites·8 claims
- 0487US4805927AHitch adapter for use in connecting semi-integral, PTO-driven implements to tractor three-point hitchDEERE & CO·Filed 1987·Granted Feb 21, 1989·42 cites·2 claims
- 0586US7207166B2Side-pull mower-conditioner tongue pivotably mounted to platform frame at location inboard of platform gearboxDEERE & CO·Filed 2005·Granted Apr 24, 2007·23 cites·6 claims
- 0682US10556472B2Pin-drop hitch mount assembly with biased pin retainer mechanismDEERE & CO·Filed 2017·Granted Feb 11, 2020·5 cites·20 claims
- 0782US4590751ADouble windrowing attachment for harvesterDEERE & CO·Filed 1984·Granted May 27, 1986·33 cites·25 claims
- 0880US10356980B2Work vehicle with wheel/track crop swath avoidanceDEERE & CO·Filed 2017·Granted Jul 23, 2019·3 cites·20 claims
- 0980US5642607AControl device for selectively limiting stroke of swing actuator for implement mid-mounted pivot tongueDEERE & CO·Filed 1996·Granted Jul 1, 1997·43 cites·10 claims
- 1079US5566536AMower-conditioner platform suspension including single upper arm and hydraulic cylinder for platform liftDEERE & CO·Filed 1995·Granted Oct 22, 1996·43 cites·14 claims
- 1175US8186697B2Suspension arrangement for rear castered wheels on a work machineSTEPHENSON ROGER D·Filed 2010·Granted May 29, 2012·11 cites·22 claims
- 1274US8800254B2Harvesting platform having angled crop converging augerDEERE & CO·Filed 2012·Granted Aug 12, 2014·7 cites·7 claims
- 1372US10618362B2Pin-drop hitch mount assembly with alignment features for aligning drawbar and drawbar receiverDEERE & CO·Filed 2017·Granted Apr 14, 2020·3 cites·20 claims
- 1472US10589580B2Pin-drop hitch mount assembly with biased pin retainer mechanismDEERE & CO·Filed 2017·Granted Mar 17, 2020·3 cites·18 claims
- 1572US10448570B2System of laying swath of cut crop for improved dry down time and method thereofDEERE & CO·Filed 2017·Granted Oct 22, 2019·3 cites·14 claims
- 1670US6845603B1Side-pull mower-conditioner tongue operatively associated with access door for closing door when tongue is swungDEERE & CO·Filed 2004·Granted Jan 25, 2005·18 cites·6 claims
- 1766US10618361B2Pin-drop hitch mount assembly with biased pin retainer mechanismDEERE & CO·Filed 2017·Granted Apr 14, 2020·2 cites·19 claims
- 1865US6181230B1Voltage coil and method and making sameABB POWER T & D CO·Filed 1998·Granted Jan 30, 2001·24 cites·13 claims
- 1960US4793430AHitch and drive structure for PTO-driven, semi-integral implementDEERE & CO·Filed 1987·Granted Dec 27, 1988·19 cites·5 claims
- 2058US10412884B2Cutterbar module structureDEERE & CO·Filed 2017·Granted Sep 17, 2019·1 cites·20 claims
- 2158US10398079B2Disk guard supportDEERE & CO·Filed 2017·Granted Sep 3, 2019·1 cites·20 claims
- 2258US9456548B2Conveyer for a material processing machineDEERE & CO·Filed 2014·Granted Oct 4, 2016·2 cites·17 claims
- 2357US9485913B2Converging drum and stripper arrangementDEERE & CO·Filed 2014·Granted Nov 8, 2016·2 cites·13 claims
- 2456US6386790B1One-piece stainless steel rim for mating a meter cover and base and method of making sameABB AUTOMATION INC·Filed 2000·Granted May 14, 2002·11 cites·6 claims
- 2554US5722222ACenter-pivot mower-conditioner driveDEERE & CO·Filed 1996·Granted Mar 3, 1998·20 cites·13 claims
- 2647US4776606AHitch and drive structure for pto-driven, semi-integral implementDEERE & CO·Filed 1987·Granted Oct 11, 1988·11 cites·7 claims
- 2744US10412885B2Rotary cutterbar module end capDEERE & CO·Filed 2017·Granted Sep 17, 2019·0 cites·20 claims
- 2843US10412886B2Debris diverter for rotary cutterbarDEERE & CO·Filed 2017·Granted Sep 17, 2019·0 cites·20 claims
- 2940US10412883B2Joint for rotary cutterbarDEERE & CO·Filed 2017·Granted Sep 17, 2019·0 cites·20 claims
- 3036US10653061B2Method and apparatus for harvesting crop materialDEERE & CO·Filed 2015·Granted May 19, 2020·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →