Inventor · disambiguated record
Douglas Karcher
Also filed as: KARCHER DOUGLAS · KARCHER DOUGLAS E
4 granted patents·58 citations·filing 2010–2022
74Inventor score
Top patents by PatentIndex Score
4 records- 0189US8391565B2System and method of determining nitrogen levels from a digital imagePURCELL LARRY C·Filed 2010·Granted Mar 5, 2013·45 cites·27 claims
- 0276US9117140B2System and method of in-season nitrogen measurement and fertilization of non-leguminous crops from digital image analysisUNIV ARKANSAS·Filed 2012·Granted Aug 25, 2015·11 cites·46 claims
- 0367US11334963B2Devices, systems and methods for digital image analysisTurfgrass Water Conservation Alliance·Filed 2018·Granted May 17, 2022·2 cites·20 claims
- 0465US12277669B2Devices, systems and methods for digital image analysisNEXGEN TURF RES LLC·Filed 2022·Granted Apr 15, 2025·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →