Douglas E. Karcher

Follow

Person

Fayetteville, AR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Devices, systems and methods for digital image analysis
- Patent number 12,277,669
- Issue date Apr 15, 2025
- NexGen Plant Science Center, LLC
- Douglas Karcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Devices, systems and methods for digital image analysis
- Patent number 11,334,963
- Issue date May 17, 2022
- NexGen Turf Research, LLC
- Douglas Karcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method of in-season nitrogen measurement and fertilizati...
- Patent number 9,117,140
- Issue date Aug 25, 2015
- Board of Trustees of the University of Arkansas
- Larry C. Purcell
- G01 - MEASURING TESTING
Information Patent Grant
System and method of determining nitrogen levels from a digital image
- Patent number 8,391,565
- Issue date Mar 5, 2013
- Board of Trustees of the University of Arkansas
- Larry C Purcell
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
DEVICES, SYSTEMS AND METHODS FOR DIGITAL IMAGE ANALYSIS
- Publication number 20220270206
- Publication date Aug 25, 2022
- NexGen Turf Research
- Douglas Karcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DEVICES, SYSTEMS AND METHODS FOR DIGITAL IMAGE ANALYSIS
- Publication number 20190122334
- Publication date Apr 25, 2019
- Turfgrass Water Conservation Alliance
- Douglas Karcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEM AND METHOD OF IN-SEASON NITROGEN MEASUREMENT AND FERTILIZATI...
- Publication number 20130044919
- Publication date Feb 21, 2013
- Board of Trustees of the University of Arkansas
- Larry C. Purcell
- G01 - MEASURING TESTING
Information Patent Application
System and method of determining nitrogen levels from a digital image
- Publication number 20110286636
- Publication date Nov 24, 2011
- Board of Trustees of the University of Arkansas
- Lary C. Purcell
- G06 - COMPUTING CALCULATING COUNTING