Inventor · disambiguated record
Donald L. Fields, Jr.
Also filed as: FIELDS DONALD L JR · FIELDS DONALD LEE · FIELDS DONALD LEE JR · FIELDS JR DONALD L
32 granted patents·2 pending applications·289 citations·filing 1974–2024
97Inventor score
Top patents by PatentIndex Score
34 records- 0192US4810426AProcess for making glyphosate from n-phosphonomethyl-2-oxazolidoneMONSANTO CO·Filed 1986·Granted Mar 7, 1989·42 cites·9 claims
- 0289US5023369AProcess for producing N-phosphonomethylglycineMONSANTO CO·Filed 1990·Granted Jun 11, 1991·43 cites·13 claims
- 0388US5043475APeroxide process for producing N-phosphonomethylglycineMONSANTO CO·Filed 1990·Granted Aug 27, 1991·36 cites·5 claims
- 0487US3980479APositive-working immobile photographic compounds which cleave by intramolecular nucleophilic displacement in alkali unless oxidizedEASTMAN KODAK CO·Filed 1974·Granted Sep 14, 1976·40 cites·44 claims
- 0586US5095140APeroxide process for producing N-phosphonomethylglycineMONSANTO CO·Filed 1991·Granted Mar 10, 1992·32 cites·5 claims
- 0685US10407562B2Compounds with antidegradant and antifatigue efficacy and compositions including said compoundsEASTMAN CHEM CO·Filed 2018·Granted Sep 10, 2019·1 cites·13 claims
- 0784US10611719B2Methods of making compounds and mixtures having antidegradant and antifatigue efficacyEASTMAN CHEM CO·Filed 2019·Granted Apr 7, 2020·1 cites·13 claims
- 0884US10287418B2Compounds with antidegradant and antifatigue efficacy and compositions including said compoundsEASTMAN CHEM CO·Filed 2016·Granted May 14, 2019·1 cites·12 claims
- 0983US10160845B2Methods of making compounds and mixtures having antidegradant and antifatigue efficacyEASTMAN CHEM CO·Filed 2017·Granted Dec 25, 2018·1 cites·12 claims
- 1082US10428009B2Methods of making compounds and mixtures having antidegradant and antifatigue efficacyEASTMAN CHEM CO·Filed 2017·Granted Oct 1, 2019·1 cites·11 claims
- 1182US10167252B2Compounds and mixtures with antidegradant and antifatigue efficacy and compositions including such compoundsEASTMAN CHEM CO·Filed 2017·Granted Jan 1, 2019·1 cites·11 claims
- 1281US10260017B2Compounds and mixtures with antidegradant and antifatigue efficacy and compositions including said compoundsEASTMAN CHEM CO·Filed 2017·Granted Apr 16, 2019·1 cites·19 claims
- 1379US10160718B2Methods of making compounds having antidegradant and antifatigue efficacyEASTMAN CHEM CO·Filed 2017·Granted Dec 25, 2018·1 cites·11 claims
- 1477US4952723AProcess for producing N-phosphonomethylglycineMONSANTO CO·Filed 1989·Granted Aug 28, 1990·14 cites·25 claims
- 1577US4108850APositive-working immobile photographic azo compoundsEASTMAN KODAK CO·Filed 1976·Granted Aug 22, 1978·12 cites·47 claims
- 1671US4937376AProcess for producing N-phosphonomethylglycineMONSANTO CO·Filed 1989·Granted Jun 26, 1990·10 cites·14 claims
- 1763US4965403AOxidation/dealkylation processMONSANTO CO·Filed 1988·Granted Oct 23, 1990·7 cites·11 claims
- 1861US4898972AProcess for producing N-phosphonomethylglycineMONSANTO CO·Filed 1988·Granted Feb 6, 1990·6 cites·17 claims
- 1958US2025368607A1Quinolineamine antidegradant compounds and uses thereofFLEXSYS AMERICA LP·Filed 2023·Application pending·0 cites
- 2058US2025066304A1Antidegradant compounds and uses thereofFLEXSYS AMERICA LP·Filed 2024·Application pending·0 cites
- 2156US4889906AAmine salts of 1,4,2-oxazaphospholidine-4-acetic acid, 2-alkoxy-2-oxidesMONSANTO CO·Filed 1988·Granted Dec 26, 1989·5 cites·6 claims
- 2252US12410144B2Triazinane derivatives and methods of making themFLEXSYS AMERICA LP·Filed 2020·Granted Sep 9, 2025·0 cites·20 claims
- 2351US5072033AProcess for producing N-phosphonomethylglycineMONSANTO CO·Filed 1990·Granted Dec 10, 1991·5 cites·14 claims
- 2450US5959126AFormation of quinonedimines from phenylenediamines by catalytic oxidationFLEXSYS AMERICA LP·Filed 1998·Granted Sep 28, 1999·4 cites·28 claims
- 2548US5077430APeroxide process for producing N-phosphonomethylglycineMONSANTO CO·Filed 1991·Granted Dec 31, 1991·4 cites·3 claims
- 2648US5047579AProcess for producing n-phosphonomethylglycineMONSANTO CO·Filed 1990·Granted Sep 10, 1991·7 cites·16 claims
- 2746US5041627APreparation of N-acyl-aminomethylphosphonatesMONSANTO CO·Filed 1990·Granted Aug 20, 1991·4 cites·12 claims
- 2843US6187937B1Preparation of N-phenyl-benzoquinoneimine from hydroxydiphenylaminesFLEXSYS AMERICA LP·Filed 1998·Granted Feb 13, 2001·2 cites·21 claims
- 2943US6043384APreparation of quinoneimines from hydroxyphenylamines using hydrogen peroxide and a catalystFLEXSYS AMERICA LP·Filed 1999·Granted Mar 28, 2000·2 cites·19 claims
- 3041US6114554APreparation of quinonediimines from phenylenediamines using a hypochlorite as an oxidation agentFLEXSYS AMERICA LP·Filed 1998·Granted Sep 5, 2000·2 cites·31 claims
- 3141US6025508APreparation of quinonediimines from phenylenediamines using oxygen and a metal or metal salt catalystFLEXSYS AMERICA LP·Filed 1999·Granted Feb 15, 2000·2 cites·37 claims
- 3238US6072061APreparation of quinoneimines from hydroxyphenylamines using a hypochlorite as an oxidation agentFLEXSYS AMERICA LP·Filed 1999·Granted Jun 6, 2000·1 cites·28 claims
- 3329US5061820AProcess for producing N-phosphonomethylgylcineMONSANTO CO·Filed 1990·Granted Oct 29, 1991·0 cites·17 claims
- 3428US6184385B1Process for the manufacture of a sulfenimideFLEXSYS AMERICA LP·Filed 1999·Granted Feb 6, 2001·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →