Inventor · disambiguated record
Roger Duffin
Also filed as: DUFFIN ROGER · DUFFIN ROGER M
17 granted patents·3 pending applications·26 citations·filing 2014–2024
89Inventor score
Files withDUFFIN DON7XCAD VALVE AND IRRIGATION INC6DUFFIN DON D4XCAD VALVE & IRRIGATION INC2DUFFIN ROGER M1
Top patents by PatentIndex Score
20 records- 0192US10201818B2Rudder directed tube delivery sprinkler headDUFFIN DON D·Filed 2016·Granted Feb 12, 2019·10 cites·12 claims
- 0291US11045824B1Nozzle assembly with rotating nozzle insertXCAD VALVE AND IRRIGATION INC·Filed 2020·Granted Jun 29, 2021·3 cites·19 claims
- 0384US10857551B1Sprinkler with radially limited nutating spoolXCAD VALVE AND IRRIGATION INC·Filed 2020·Granted Dec 8, 2020·2 cites·20 claims
- 0482US12336460B2Irrigation saddle annular seal faceXCAD VALVE AND IRRIGATION INC·Filed 2024·Granted Jun 24, 2025·0 cites·5 claims
- 0582US11048280B2Pressure regulatorDUFFIN DON·Filed 2019·Granted Jun 29, 2021·4 cites·11 claims
- 0676US11213836B2Nutating sprinkler headDUFFIN DON D·Filed 2019·Granted Jan 4, 2022·2 cites·5 claims
- 0775US11154880B2Nutating sprinkler headXCAD VALVE & IRRIGATION INC·Filed 2020·Granted Oct 26, 2021·1 cites·11 claims
- 0871US12144294B2Irrigation saddle, adapter, and capDUFFIN DON D·Filed 2018·Granted Nov 19, 2024·1 cites·4 claims
- 0970US9457363B2Nutating sprinkler headDUFFIN DON·Filed 2014·Granted Oct 4, 2016·3 cites·10 claims
- 1056US11358160B2Sprinkler braking mechanismDUFFIN DON D·Filed 2019·Granted Jun 14, 2022·0 cites·9 claims
- 1153US11896990B2Nozzle assembly with rotating nozzle insertXCAD VALVE AND IRRIGATION INC·Filed 2021·Granted Feb 13, 2024·0 cites·20 claims
- 1253US10429859B2Pressure regulatorDUFFIN DON·Filed 2019·Granted Oct 1, 2019·0 cites·16 claims
- 1348US11358162B2Sprinkler head with damper motorDUFFIN DON·Filed 2019·Granted Jun 14, 2022·0 cites·4 claims
- 1446US11534776B2Sprinkler headDUFFIN DON·Filed 2018·Granted Dec 27, 2022·0 cites·3 claims
- 1546US11045822B2Speed controlled nutating sprinklerXCAD VALVE AND IRRIGATION INC·Filed 2020·Granted Jun 29, 2021·0 cites·6 claims
- 1645US12005464B2Sprinkler with radially limited nutating spool assemblyXCAD VALVE & IRRIGATION INC·Filed 2020·Granted Jun 11, 2024·0 cites·12 claims
- 1745US2019134657A1Sprinkler apparatusDUFFIN DON·Filed 2018·Application pending·0 cites
- 1844US11261985B1Gas valveXCAD VALVE AND IRRIGATION INC·Filed 2021·Granted Mar 1, 2022·0 cites·11 claims
- 1944US2019338862A1Irrigation valveDUFFIN DON·Filed 2019·Application pending·0 cites
- 2040US2018066764A1Fast acting valveDUFFIN ROGER M·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →