Inventor · disambiguated record
David R. Duncan
Also filed as: DUNCAN DAVID · DUNCAN DAVID ALEXANDER · DUNCAN DAVID F · DUNCAN DAVID R
43 granted patents·12 pending applications·423 citations·filing 1975–2025
98Inventor score
Files withOP HYGIENE IP GMBH13DUNCAN DAVID R11MONSANTO TECHNOLOGY LLC11Monumedical LLC3AKULA ANISHA2
Top patents by PatentIndex Score
55 records- 0198US10242301B2Superimposed QR code for dispenser and replaceable reservoirOP HYGIENE IP GMBH·Filed 2017·Granted Mar 26, 2019·18 cites·20 claims
- 0297US9212762B2Multi-port stopcock valve and flow designating systemDUNCAN DAVID R·Filed 2013·Granted Dec 15, 2015·48 cites·21 claims
- 0396US8584701B2Multi-port stopcock valve and flow designating systemDUNCAN DAVID R·Filed 2010·Granted Nov 19, 2013·33 cites·37 claims
- 0495US10178928B2Interactive display deviceOP HYGIENE IP GMBH·Filed 2017·Granted Jan 15, 2019·11 cites·20 claims
- 0594US11720775B2Method providing superimposed machine readable tags for dispenser and replaceable reservoirOP HYGIENE IP GMBH·Filed 2022·Granted Aug 8, 2023·2 cites·20 claims
- 0694US10671902B2Method providing superimposed QR code for dispenser and replaceable reservoirOP HYGIENE IP GMBH·Filed 2019·Granted Jun 2, 2020·6 cites·20 claims
- 0794US9500287B2Valve with positive and negative status indicatorDUNCAN DAVID R·Filed 2014·Granted Nov 22, 2016·13 cites·20 claims
- 0894US8513016B2Methods for producing transgenic plantsAKULA ANISHA·Filed 2012·Granted Aug 20, 2013·15 cites·2 claims
- 0994US8124411B2Methods for producing transgenic plantsAKULA ANISHA·Filed 2007·Granted Feb 28, 2012·26 cites·12 claims
- 1091US11091766B2Methods for producing transgenic plantsMONSANTO TECHNOLOGY LLC·Filed 2018·Granted Aug 17, 2021·2 cites·4 claims
- 1190US9357886B2Dispenser shroudOP HYGIENE IP GMBH·Filed 2014·Granted Jun 7, 2016·11 cites·32 claims
- 1289US9995405B2Stopcock with detentsDUNCAN DAVID R·Filed 2016·Granted Jun 12, 2018·9 cites·10 claims
- 1388US9993119B2Liquid dispenser with removable mobile dispenserOP HYGIENE IP GMBH·Filed 2016·Granted Jun 12, 2018·4 cites·20 claims
- 1486US10993587B2Interactive display deviceOP HYGIENE IP GMBH·Filed 2018·Granted May 4, 2021·3 cites·24 claims
- 1586US8962326B2Methods for producing transgenic plantsMONSANTO TECHNOLOGY LLC·Filed 2013·Granted Feb 24, 2015·2 cites·23 claims
- 1681US11718855B2Methods for producing transgenic plantsMONSANTO TECHNOLOGY LLC·Filed 2021·Granted Aug 8, 2023·0 cites·9 claims
- 1780US8106258B2Use of a low-oxygen environment in plant transformationDUNCAN DAVID R·Filed 2004·Granted Jan 31, 2012·6 cites·19 claims
- 1880US7572635B2Method for agrobacterium transformation for dihaploid corn plantsMONSANTO TECHNOLOGY LLC·Filed 2005·Granted Aug 11, 2009·4 cites·5 claims
- 1980US6118375APortable intruder detection system for campsitesFiled 1999·Granted Sep 12, 2000·77 cites·5 claims
- 2079US10006036B2Methods for producing transgenic plantsMONSANTO TECHNOLOGY LLC·Filed 2015·Granted Jun 26, 2018·1 cites·8 claims
- 2179US7855325B2Use of nitric oxide modulators in Agrobacterium-mediated plant transformationMONSANTO TECHNOLOGY LLC·Filed 2008·Granted Dec 21, 2010·3 cites·6 claims
- 2277USD591544SDispenserGOTOHTI COM INC·Filed 2008·Granted May 5, 2009·25 cites·1 claims
- 2375US8517989B2Medication infusion kitDUNCAN DAVID R·Filed 2011·Granted Aug 27, 2013·6 cites·3 claims
- 2472USD798080SDispenserOP HYGIENE IP GMBH·Filed 2016·Granted Sep 26, 2017·18 cites·1 claims
- 2572US3971512ASpraying apparatusDUNCAN DAVID ROBERTSON·Filed 1975·Granted Jul 27, 1976·32 cites·10 claims
- 2671US7388126B2Use of nitric oxide modulators in Agrobacterium-mediated plant transformationMONSANTO TECHNOLOGY LLC·Filed 2004·Granted Jun 17, 2008·3 cites·10 claims
- 2770US12137851B2Interactive display deviceOP HYGIENE IP GMBH·Filed 2021·Granted Nov 12, 2024·0 cites·18 claims
- 2870US11980327B2Interactive display deviceOP HYGIENE IP GMBH·Filed 2021·Granted May 14, 2024·0 cites·20 claims
- 2970US6189472B1Craft with tilting sailFiled 2000·Granted Feb 20, 2001·12 cites·4 claims
- 3069US11491277B2Syringe with multi-stage filling and dispensingMonumedical LLC·Filed 2019·Granted Nov 8, 2022·1 cites·5 claims
- 3168US11347984B2Method providing superimposed machine readable tags for dispenser and replaceable reservoirOP HYGIENE IP GMBH·Filed 2020·Granted May 31, 2022·0 cites·20 claims
- 3268US9895487B2Compact non-electric medicament infuserDUNCAN DAVID R·Filed 2012·Granted Feb 20, 2018·4 cites·27 claims
- 3367US11713465B2Methods for transforming wheat explants and compositions thereforMONSANTO TECHNOLOGY LLC·Filed 2014·Granted Aug 1, 2023·1 cites·16 claims
- 3467US2023126585A1Syringe with multi-stage filling and dispensingMonumedical LLC·Filed 2022·Application pending·0 cites
- 3567US2023132009A1Syringe with multi-stage filling and dispensingMonumedical LLC·Filed 2022·Application pending·0 cites
- 3665US10244901B2Levitation fluid dispenserOP HYGIENE IP GMBH·Filed 2016·Granted Apr 2, 2019·1 cites·20 claims
- 3764US10368701B2Reservoir with removable mobile dispenserOP HYGIENE IP GMBH·Filed 2018·Granted Aug 6, 2019·0 cites·20 claims
- 3863USD628421SDispenserGOTOHTI COM INC·Filed 2010·Granted Dec 7, 2010·12 cites·1 claims
- 3959US9399095B2Compact non-electric medicament infuserDUNCAN DAVID R·Filed 2009·Granted Jul 26, 2016·1 cites·28 claims
- 4059US2025367372A1Non-electric medicament infuserMONUMEDICAL INC·Filed 2025·Application pending·0 cites
- 4154US2007039639A1Portable ballistic shelter system and devicePROTECTIVE SOLUTIONS INC·Filed 2006·Application pending·0 cites
- 4252US7947869B2Methods for inducing cotton embryogenic callusMONSANTO TECHNOLOGY LLC·Filed 2008·Granted May 24, 2011·0 cites·18 claims
- 4352US2013313156A1Medical kit for the storage of perishable substancesDUNCAN DAVID R·Filed 2013·Application pending·0 cites
- 4452US2016221709A1Medical kit for the storage of perishable substancesDUNCAN DAVID R·Filed 2016·Application pending·0 cites
- 4550US11293416B2Precision fluid dispensing deviceHARTMANNS INC·Filed 2018·Granted Apr 5, 2022·0 cites·18 claims
- 4650US2004210958A1A Novel Culture Method for Corn TransformationMONSANTO TECHNOLOGY LLC·Filed 2004·Application pending·0 cites
- 4750US2004210959A1A Novel Method for Production of Transformed Dihaploid Corn PlantsMONSANTO TECHNOLOGY LLC·Filed 2004·Application pending·0 cites
- 4848US2009017998A1Exercise apparatusDUNCAN DAVID·Filed 2006·Application pending·0 cites
- 4946US2012090455A1Portable Ballistic Shelter System and DeviceDUNCAN DAVID·Filed 2011·Application pending·0 cites
- 5044US2003196581A1Multi-beam panel structuresFiled 2003·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →