Inventor · disambiguated record
William Douglas Graham
Also filed as: GRAHAM SR WILLIAM D · GRAHAM WILLIAM D · GRAHAM WILLIAM DOUGLAS
28 granted patents·10 pending applications·391 citations·filing 1989–2025
96Inventor score
Top patents by PatentIndex Score
38 records- 0195US7918285B1Implement with active wing down force and wing lift sequencingDEERE & CO·Filed 2010·Granted Apr 5, 2011·65 cites·10 claims
- 0293US8573111B2Active implement down force system with automatic latching of tractor power beyond pressureGRAHAM WILLIAM DOUGLAS·Filed 2010·Granted Nov 5, 2013·27 cites·12 claims
- 0390US5988293AGauge structure for a cylinder operated depth controlDEERE & CO·Filed 1998·Granted Nov 23, 1999·89 cites·19 claims
- 0485US2025388197A1Cart stability systemDEERE & CO·Filed 2025·Application pending·0 cites
- 0583US11343959B2Air flow distribution control for curve compensation on air-seeding carts and toolsDEERE & CO·Filed 2019·Granted May 31, 2022·2 cites·20 claims
- 0682US6581530B1Folding walkway for seeding machineDEERE & CO·Filed 2001·Granted Jun 24, 2003·41 cites·33 claims
- 0780US8468655B2Hinge assembly for frame having two pivot axesBORKGREN STANELY R·Filed 2010·Granted Jun 25, 2013·25 cites·5 claims
- 0878US11191207B2Commodity metering system for work vehicle and calibration method for sameDEERE & CO·Filed 2017·Granted Dec 7, 2021·5 cites·19 claims
- 0977US6000315ALift control for implement frameDEERE & CO·Filed 1998·Granted Dec 14, 1999·25 cites·25 claims
- 1076US10492359B2Seeding systemDEERE & CO·Filed 2016·Granted Dec 3, 2019·5 cites·15 claims
- 1176US2024334863A1Seeding systemDEERE & CO·Filed 2024·Application pending·0 cites
- 1274US12296794B2Agricultural machine with dynamic debris removalDEERE & CO·Filed 2022·Granted May 13, 2025·0 cites·17 claims
- 1372US2022214201A1Product distribution device with section control monitoringDEERE & CO·Filed 2022·Application pending·0 cites
- 1471US7051663B2Pivoting planting units verticallyDEERE & CO·Filed 2001·Granted May 30, 2006·18 cites·4 claims
- 1571US2025366385A1Air seeding turn compensation using yaw rate from sensor on towing vehicleDEERE & CO·Filed 2025·Application pending·0 cites
- 1667US2024389500A1Measurement of seeder cart tank contentsDEERE & CO·Filed 2024·Application pending·0 cites
- 1766US6068062AFlexible frame for a multi-section implementDEERE & CO·Filed 1998·Granted May 30, 2000·25 cites·20 claims
- 1866US2022174858A1Commodity metering system for work vehicle and calibration method for sameDEERE & CO·Filed 2021·Application pending·0 cites
- 1964US12349614B2Air seeding turn compensation using yaw rate from sensor on towing vehicleDEERE & CO·Filed 2021·Granted Jul 8, 2025·0 cites·19 claims
- 2063US12415486B2Cart stability systemDEERE & CO·Filed 2020·Granted Sep 16, 2025·0 cites·19 claims
- 2163US7044047B1Cylinder mounted stroke controlDEERE & CO·Filed 2004·Granted May 16, 2006·9 cites·18 claims
- 2261US12114589B2Pre-charging technique for dispensing product from tractor tool prior to reaching plant siteDEERE & CO·Filed 2021·Granted Oct 15, 2024·0 cites·17 claims
- 2361US11140811B2Commodity metering system for work vehicle with rollers in staggered arrangementDEERE & CO·Filed 2018·Granted Oct 12, 2021·1 cites·19 claims
- 2460US11818976B2Agricultural machine control based on sensed blockage distanceDEERE & CO·Filed 2020·Granted Nov 21, 2023·0 cites·20 claims
- 2560US6622646B1Mounting assembly for hydraulic couplingDEERE & CO·Filed 2002·Granted Sep 23, 2003·11 cites·17 claims
- 2658US12016264B2Measurement of seeder cart tank contentsDEERE & CO·Filed 2021·Granted Jun 25, 2024·0 cites·7 claims
- 2757US6688242B2Frame folding arrangement with vertically pivoting planting unitsDEERE & CO·Filed 2001·Granted Feb 10, 2004·10 cites·11 claims
- 2856US12284934B2Systems and methods for predictive tractive characteristics and controlDEERE & CO·Filed 2022·Granted Apr 29, 2025·0 cites·18 claims
- 2956US2024090366A1Seeder depth controlDEERE & CO·Filed 2022·Application pending·0 cites
- 3054US11014741B2Closure arrangement for tank opening of agricultural machineDEERE & CO·Filed 2016·Granted May 25, 2021·1 cites·14 claims
- 3153US11950526B2Seeding system with vertical array of nozzlesDEERE & CO·Filed 2019·Granted Apr 9, 2024·0 cites·23 claims
- 3253US5027718ASectional tableGRAHAM SR WILLIAM D·Filed 1989·Granted Jul 2, 1991·21 cites·16 claims
- 3353US2016330901A1Product distribution device with section control monitoringDEERE & CO·Filed 2015·Application pending·0 cites
- 3452US6378621B1Lift tube for an agricultural implement frameDEERE & CO·Filed 2000·Granted Apr 30, 2002·10 cites·13 claims
- 3550US9743575B2Commodity cart tank with upper and lower fill openingsDEERE & CO·Filed 2015·Granted Aug 29, 2017·1 cites·13 claims
- 3650US2024279005A1Automatically detecting or estimating material delivery delays and machine controlDEERE & CO·Filed 2023·Application pending·0 cites
- 3739US12011958B2Self-locking hitch assemblyDEERE & CO·Filed 2021·Granted Jun 18, 2024·0 cites·20 claims
- 3837US2015132072A1Adjustable height distribution system for an implementDEERE & CO·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →