Inventor · disambiguated record
Henry Szczepanski
Also filed as: SZCZEPANSKI HENRY
67 granted patents·5 pending applications·506 citations·filing 1977–2009
99Inventor score
Files withCIBA GEIGY CORP40SYNGENTA CROP PROT INC15BAYER AG5NOVARTIS AG3NOVARTIS CROP PROTECTION INC2
Top patents by PatentIndex Score
72 records- 0197US6894005B1HerbicidesSYNGENTA CROP PROT INC·Filed 2000·Granted May 17, 2005·113 cites·6 claims
- 0295US4347372ABenzoxazolyl-glyoxylonitrile-2-oxime ether derivativesCIBA GEIGY CORP·Filed 1979·Granted Aug 31, 1982·35 cites·4 claims
- 0394US4412856AHerbicidal heterocyclic and substituted phenyl phenylacetylene aminesCIBA GEIGY CORP·Filed 1981·Granted Nov 1, 1983·36 cites·19 claims
- 0492US4515626AN-(Cyclopropyl-triazinyl-n'-(arylsulfonyl) ureas having herbicidal activityCIBA GEIGY CORP·Filed 1983·Granted May 7, 1985·18 cites·13 claims
- 0592US4508560ACertain pyridylacetylene compounds, compositions containing same and herbicidal methods of useCIBA GEIGY CORP·Filed 1982·Granted Apr 2, 1985·22 cites·14 claims
- 0691US4758667AProcess for the preparation of 2-(imidazolin-2-yl)-3-pyridine- and -3-quinolinecarboxylic acidsCIBA GEIGY CORP·Filed 1987·Granted Jul 19, 1988·32 cites·15 claims
- 0791US4269775AOxime derivatives for protecting plant cropsCIBA GEIGY CORP·Filed 1979·Granted May 26, 1981·21 cites·17 claims
- 0887US7459414B2HerbicidesSYNGENTA CROP PROT INC·Filed 2005·Granted Dec 2, 2008·5 cites·5 claims
- 0987US4715883AThiadiazolyl-glyoxylonitrile-2-oxime ether derivatives for protecting plant cropsCIBA GEIGY CORP·Filed 1982·Granted Dec 29, 1987·16 cites·12 claims
- 1084US4348221AHerbicidal derivatives of pyrid-2-yloxyphenoxy-acetic acids and estersCIBA GEIGY CORP·Filed 1980·Granted Sep 7, 1982·13 cites·6 claims
- 1183US4233054APhenoxy-alkanecarboxylic acid derivatives, their production, herbicidal compositions containing them, and their useCIBA GEIGY CORP·Filed 1979·Granted Nov 11, 1980·10 cites·10 claims
- 1279US7605111B2HerbicidesSYNGENTA CROP PROT INC·Filed 2005·Granted Oct 20, 2009·2 cites·5 claims
- 1378US4726838A3H imidazo[1'2':2,2]pyrrolo[3,4-b]pyridine-2,5-dione, useful as herbicidal agentsCIBA GEIGY CORP·Filed 1986·Granted Feb 23, 1988·14 cites·8 claims
- 1476US4721522A1H-Imidazo [1',2':1,2]pyrrolo[3,4-b]pyridines and their use as herbicidal agentsCIBA GEIGY CORP·Filed 1986·Granted Jan 26, 1988·9 cites·16 claims
- 1576US4600428AN-(cyclopropyl-pyrimidinyl-N'-(aryl-sulfonyl) ureas having herbicidal activityCIBA GEIGY CORP·Filed 1985·Granted Jul 15, 1986·8 cites·12 claims
- 1675US6313344B1Organic compoundsBAYER AG·Filed 1998·Granted Nov 6, 2001·17 cites·16 claims
- 1775US4904300AImidazole derivativesCIBA GEIGY CORP·Filed 1988·Granted Feb 27, 1990·12 cites·20 claims
- 1875US4523947AUse of triazine derivatives for protecting maize and sorghum plantsCIBA GEIGY CORP·Filed 1984·Granted Jun 18, 1985·9 cites·10 claims
- 1972US6552187B1Process for the preparation of herbicidal derivativesSYNGENTA CROP PROT INC·Filed 2000·Granted Apr 22, 2003·7 cites·12 claims
- 2071US4311514ASulfur-containing alkanecarboxylic acid derivatives with herbicidal and plant growth-regulating action, production thereof and method of useCIBA GEIGY CORP·Filed 1980·Granted Jan 19, 1982·7 cites·14 claims
- 2168US7795442B2Preparation of thiazolesSYNGENTA CROP PROT INC·Filed 2009·Granted Sep 14, 2010·0 cites·1 claims
- 2268US4227914AHerbicidal phenoxyalkyloxazolinesCIBA GEIGY CORP·Filed 1979·Granted Oct 14, 1980·5 cites·11 claims
- 2367US7538229B2Preparation of thiazolesSYNGENTA CROP PROT INC·Filed 2007·Granted May 26, 2009·0 cites·2 claims
- 2466US4997947AProcess of preparing 2-(imidazolin-2-yl)-nicotinic acid compoundsCIBA GEIGY CORP·Filed 1989·Granted Mar 5, 1991·7 cites·2 claims
- 2564US7323564B2Preparation of thiazolesSYNGENTA CROP PROT INC·Filed 2006·Granted Jan 29, 2008·0 cites·4 claims
- 2664US6294504B1Herbicidal compositionSYNGENTA CROP PROT INC·Filed 1997·Granted Sep 25, 2001·13 cites·13 claims
- 2764US4670559A2-amino-4-cyclopropyl-1,3,5-triazines as intermediates for the production of herbicidally active N-(cyclopropyl-triazinyl)-N'-arylsulfonyl ureasCIBA GEIGY CORP·Filed 1986·Granted Jun 2, 1987·5 cites·3 claims
- 2862US4406691AHerbicidal ethynyl-phenylureasCIBA GEIGY CORP·Filed 1980·Granted Sep 27, 1983·5 cites·10 claims
- 2960US4626272ACertain pyridylacetylene compounds, compositions containing same and herbicidal methods of useCIBA GEIGY CORP·Filed 1984·Granted Dec 2, 1986·3 cites·18 claims
- 3058US5985921A2-Phenyl-2-methoxyimino acetic acid estersNOVARTIS AG·Filed 1996·Granted Nov 16, 1999·6 cites·26 claims
- 3157US4851029AThiazolylalkyl esters of α-imidazolinonenicotinic acids and herbicidal methods of useCIBA GEIGY CORP·Filed 1986·Granted Jul 25, 1989·4 cites·13 claims
- 3257US4743296AHeterocyclically fused pyridine compounds as herbicidesCIBA GEIGY CORP·Filed 1986·Granted May 10, 1988·3 cites·12 claims
- 3356US5935908APesticidal indazole derivativesNOVARTIS CROP PROTECTION INC·Filed 1996·Granted Aug 10, 1999·6 cites·25 claims
- 3456US4778889A2-amino-4-halogeno-6-cyclopropyl-1,3,5-triazinesCIBA GEIGY CORP·Filed 1987·Granted Oct 18, 1988·2 cites·3 claims
- 3556US4468242AOxime derivatives for promoting the growth of soybeansCIBA GEIGY CORP·Filed 1981·Granted Aug 28, 1984·3 cites·3 claims
- 3655US5545630AVinylcarboxylic acid derivativesCIBA GEIGY CORP·Filed 1995·Granted Aug 13, 1996·6 cites·21 claims
- 3754US6864392B2α-Sulfin and α-Sulfonamino amide derivativesSYNGENTA CROP PROT INC·Filed 2001·Granted Mar 8, 2005·1 cites·15 claims
- 3854US4532732AOxime derivatives for protecting plant cropsCIBA GEIGY CORP·Filed 1982·Granted Aug 6, 1985·4 cites·169 claims
- 3953US7161011B2Preparation of thiazolesSYNGENTA CROP PROT INC·Filed 2003·Granted Jan 9, 2007·0 cites·4 claims
- 4053US4519834AHerbicidal ethynyl-phenylureasCIBA GEIGY CORP·Filed 1983·Granted May 28, 1985·3 cites·17 claims
- 4153US4160843ANovel amidinesCIBA GEIGY CORP·Filed 1977·Granted Jul 10, 1979·2 cites·9 claims
- 4252US4824471AHeterocyclylalkyl esters of 2-imidazolinonenicotinic acidsCIBA GEIGY CORP·Filed 1988·Granted Apr 25, 1989·2 cites·10 claims
- 4350US6677457B2Process for the preparation of thiazole derivativesSYNGENTA CROP PROT INC·Filed 2002·Granted Jan 13, 2004·0 cites·1 claims
- 4448US6369233B1Process for the preparation of thiazole derivativesSYNGENTA CROP PROT INC·Filed 2000·Granted Apr 9, 2002·0 cites·2 claims
- 4548US5000777AImidazole derivativesCIBA GEIGY CORP·Filed 1989·Granted Mar 19, 1991·2 cites·24 claims
- 4645US6121455AProcess for the preparation of thiazole derivativesNOVARTIS CROP PROTECTION INC·Filed 1997·Granted Sep 19, 2000·2 cites·6 claims
- 4745US5606057AProcess for the preparation of 6-alkyl-4-(pyridin-3-yl-methyleneamino)-4,5-dihydro-1,2,4-triazin-3(2H)-oneCIBA GEIGY CORP·Filed 1994·Granted Feb 25, 1997·2 cites·12 claims
- 4844US4891443AN,N'-Dicyanocyclopropanecarbamidines and a process for their preparationCIBA GEIGY CORP·Filed 1988·Granted Jan 2, 1990·1 cites·2 claims
- 4943US4741763AHeterocyclylalkyl esters of 2-imidazolinonenicotinic acidsCIBA GEIGY CORP·Filed 1986·Granted May 3, 1988·1 cites·15 claims
- 5042US6211381B1Thiazole compoundsNOVARTIS CROP PROT INC·Filed 1996·Granted Apr 3, 2001·2 cites·1 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Henry Szczepanski files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →