Inventor · disambiguated record
Helmut Hagen
Also filed as: FLEIG HELMUT · HAGEN HELMUT
81 granted patents·535 citations·filing 1974–2011
99Inventor score
Top patents by PatentIndex Score
81 records- 0194US4715889AQuinoline derivatives and their use for controlling undesirable plant growthBASF AG·Filed 1983·Granted Dec 29, 1987·40 cites·15 claims
- 0293US4497651ADichloroquinoline derivatives for use as herbicidesBASF AG·Filed 1982·Granted Feb 5, 1985·43 cites·11 claims
- 0389US5306815AAzo dyes with a coupling component of the quinoline seriesBASF AG·Filed 1992·Granted Apr 26, 1994·36 cites·4 claims
- 0487US5424481APreparation of methylsulfonylbenzoic acidsBASF AG·Filed 1993·Granted Jun 13, 1995·27 cites·4 claims
- 0587US4632696ADichloroquinoline derivatives for use as herbicidesBASF AG·Filed 1984·Granted Dec 30, 1986·17 cites·4 claims
- 0685US5422335AHerbicides containing substituted 2-aminothiophenesBASF AG·Filed 1991·Granted Jun 6, 1995·41 cites·8 claims
- 0782US6706886B2Process and novel intermediates for preparing isoxazolin-3-ylacyl benzenesBASF AG·Filed 2003·Granted Mar 16, 2004·8 cites·1 claims
- 0881US5486618ASubstituted 5-aminopyrazolesBASF AG·Filed 1991·Granted Jan 23, 1996·25 cites·10 claims
- 0981US4994564AAzo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole seriesBASF AG·Filed 1988·Granted Feb 19, 1991·16 cites·4 claims
- 1080US4324793A4-Nitro-2-trichloromethylphenyl disulfidesBASF AG·Filed 1979·Granted Apr 13, 1982·9 cites·15 claims
- 1178US4845226APreparation of 8-bromomethyl-3-methylquinoline compoundsBASF AG·Filed 1988·Granted Jul 4, 1989·11 cites·4 claims
- 1278US4797148AQuinoline derivatives and their use for controlling undesirable plant growthBASF AG·Filed 1986·Granted Jan 10, 1989·13 cites·8 claims
- 1378US3994909A1,2,4-Oxadiazolin-5-one derivativesBASF AG·Filed 1975·Granted Nov 30, 1976·8 cites·7 claims
- 1477US5565408ACyanoquinoline compoundsBASF AG·Filed 1995·Granted Oct 15, 1996·25 cites·7 claims
- 1576US4617395APreparation of quinolinesBASF AG·Filed 1984·Granted Oct 14, 1986·9 cites·4 claims
- 1674US5491123AHerbicides containing 3-aminobenzo(B)thiophenes as antidotesBASF AG·Filed 1992·Granted Feb 13, 1996·18 cites·8 claims
- 1772US5561100APyrido-fused 4-oxo-4H-benzopyrans, their preparation and their use as antidotesBASF AG·Filed 1994·Granted Oct 1, 1996·14 cites·8 claims
- 1872US5006659APreparation of 7-chloroquinoline-8-carboxylic acidsBASF AG·Filed 1990·Granted Apr 9, 1991·13 cites·7 claims
- 1972US4544755ACleavage of phthalimides to aminesBASF AG·Filed 1984·Granted Oct 1, 1985·7 cites·13 claims
- 2069US6525204B1Method for producing isoxazoline-3-yl-acyl benzeneBASF AG·Filed 1999·Granted Feb 25, 2003·7 cites·17 claims
- 2169US6469176B1Method and novel intermediate products for producing isoxazolin-3-yl-acylbenzenenesBASF AG·Filed 1999·Granted Oct 22, 2002·10 cites·6 claims
- 2266US5059240A2,3-substituted 1,8-naphthyridines, their preparation and their use as antidotesBASF AG·Filed 1990·Granted Oct 22, 1991·10 cites·5 claims
- 2365US5035736AHerbicides which contain 2-(4-aryloxy)phenoxyacetic or -propionic acid derivatives and/or cyclohexenone derivatives as herbicidal active ingredients and naphthalene derivatives as antidotesBASF AG·Filed 1989·Granted Jul 30, 1991·8 cites·12 claims
- 2464US4066775ACertain fungitoxic 2-halo-5-trichloromethyl-1,3,4-thiadiazolesBASF AG·Filed 1976·Granted Jan 3, 1978·4 cites·4 claims
- 2563US8049017B2Preparation of isoxazolin-3-ylacylbenzenesBASF SE·Filed 2011·Granted Nov 1, 2011·0 cites·1 claims
- 2663US4189433A4-Hydroxy-1,2-benzisothiazoles and their manufactureBASF AG·Filed 1978·Granted Feb 19, 1980·4 cites·6 claims
- 2762US6670482B2Process and novel intermediates for preparing isoxazolin-3-ylacyl benzenesBASF AG·Filed 2002·Granted Dec 30, 2003·1 cites·1 claims
- 2862US6608209B2Preparation of isoxazolin-3-ylacylbenzenesBASF AG·Filed 2002·Granted Aug 19, 2003·1 cites·1 claims
- 2962US4277477AMethod of using 1,2-benzisothiazolesBASF AG·Filed 1979·Granted Jul 7, 1981·4 cites·1 claims
- 3062US4232165A2-Substituted-1-alkyl-nitroimidazolesBASF AG·Filed 1979·Granted Nov 4, 1980·3 cites·2 claims
- 3162US4163020A2-Trichloromethyl-4-nitrobenzenesulfenic acid derivativesBASF AG·Filed 1978·Granted Jul 31, 1979·4 cites·3 claims
- 3261US7663001B2Preparation of isoxazolin-3-ylacylbenzeneBASF AG·Filed 2007·Granted Feb 16, 2010·0 cites·3 claims
- 3360US4511393A3-Chloro-8-cyanoquinolines and their use for controlling undesirable plant growthBASF AG·Filed 1983·Granted Apr 16, 1985·4 cites·8 claims
- 3460US4122263AProduction of 2-(o-alkylthiophenyl)-1,3-diazocycloalkene hydrohalidesBASF AG·Filed 1977·Granted Oct 24, 1978·4 cites·7 claims
- 3558US8124810B2Preparation of isoxazolin-3-ylacylbenzenesRHEINHEIMER JOACHIM·Filed 2010·Granted Feb 28, 2012·0 cites·6 claims
- 3656US4395415AN-Oxo-pyridin-2-yl-dithio-(4-nitro-2-trichloromethylbenzene) and a fungicidal formulation containing sameBASF AG·Filed 1981·Granted Jul 26, 1983·3 cites·2 claims
- 3756US4140692AManufacture of 3-amino-1,2-benzisothiazolesBASF AG·Filed 1977·Granted Feb 20, 1979·3 cites·10 claims
- 3855US6548677B1Method of producing 2-alkyl-3-(4,5-dihydroisoxazole-3-yl)-halobenzenesBASF AG·Filed 1999·Granted Apr 15, 2003·4 cites·14 claims
- 3955US5420307A2-amino-4-oxo-4H-benzopyrans, their preparataion and their use as antidotesBASF AG·Filed 1991·Granted May 30, 1995·5 cites·2 claims
- 4055US4808212AOxime esters of substituted quinoline-8-carboxylic acids and use thereof as herbicidesBASF AG·Filed 1986·Granted Feb 28, 1989·4 cites·6 claims
- 4155US4522646A3,7-Dichloroquinoline derivatives and their use for controlling undesirable plant growthBASF AG·Filed 1983·Granted Jun 11, 1985·3 cites·9 claims
- 4254US5104441AHerbicidal sulfonamides and their use to influence plant growthBASF AG·Filed 1990·Granted Apr 14, 1992·7 cites·9 claims
- 4353US6716989B2Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenesBASF AG·Filed 2003·Granted Apr 6, 2004·0 cites·2 claims
- 4453US4083986A2-Trichloromethyl-1,3,4-thiadiazoleBASF AG·Filed 1977·Granted Apr 11, 1978·2 cites·10 claims
- 4552US5783694AIR-absorbing phthalocyaninesBASF AG·Filed 1997·Granted Jul 21, 1998·4 cites·5 claims
- 4652US5198575APreparation of nitrobenzoic and anthranilic acidsBASF AG·Filed 1992·Granted Mar 30, 1993·4 cites·2 claims
- 4752US4218460ANitroimidazolesBASF AG·Filed 1978·Granted Aug 19, 1980·2 cites·15 claims
- 4852US4206217A3-[4-(1,3-Diazacycloalken-2-yl)-phenyl]-1,2-benzisothiazoles, their manufacture, and drugs containing these compoundsBASF AG·Filed 1978·Granted Jun 3, 1980·2 cites·7 claims
- 4951US7309802B2Preparation of isoxazolin-3-ylacylbenzeneBASF AG·Filed 2003·Granted Dec 18, 2007·0 cites·2 claims
- 5051US6603017B2Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenesBASF AG·Filed 2002·Granted Aug 5, 2003·0 cites·4 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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