Inventor · disambiguated record
Hellmut Hoffmann
Also filed as: ARLT DIETER · BEHRENZ WOLFGANG · HAMMANN INGEBORG · HOFFMANN HELLMUT
48 granted patents·83 citations·filing 1973–1985
97Inventor score
Files withBAYER AG48
Top patents by PatentIndex Score
48 records- 0169US4001404AN-dithiophosphoryl-carbamic acid estersBAYER AG·Filed 1975·Granted Jan 4, 1977·6 cites·9 claims
- 0267US3975523AO-(2-Carbisopropoxyphenyl)-thiono-phosphoric (phosphonic) acid ester-amides and ester-imides and insecticidal and acaricidal composition and methodBAYER AG·Filed 1974·Granted Aug 17, 1976·5 cites·9 claims
- 0363US3974171AO-[3-methyl-1,3,4-triazole-(2,3,-b)-thiazol(6)yl]-(thiono)-phosphoric(phosphonic) acid estersBAYER AG·Filed 1974·Granted Aug 10, 1976·4 cites·7 claims
- 0463US3957977AO-Alkyl-o-[3-methyl-1,2,4-triazolo-(2,3,b)-thiazol(6)-yl](thiono)-phosphoric (phosphonic) acid estersBAYER AG·Filed 1974·Granted May 18, 1976·4 cites·12 claims
- 0562US4139615AO-alkyl-S-alkyl-O-(4-trifluoromethylthio-phenyl)-(thiono)-thiol-phosphoric acid esters and pesticidal compositions and methodsBAYER AG·Filed 1977·Granted Feb 13, 1979·4 cites·8 claims
- 0661US4609646A2-(thi)oxo-1,3,2-oxazaphospholanes as synergizing agents for pesticidesBAYER AG·Filed 1984·Granted Sep 2, 1986·3 cites·5 claims
- 0760US4387060A2-Thi-1,3,2-oxazaphospholanesBAYER AG·Filed 1980·Granted Jun 7, 1983·3 cites·6 claims
- 0860US3949022AN-[N',N'-disubstituted-aminomethylidene]-(thiono)thiol-phosphoric acid ester imidesBAYER AG·Filed 1974·Granted Apr 6, 1976·4 cites·4 claims
- 0958US4296241APreparation of 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid derivativesBAYER AG·Filed 1980·Granted Oct 20, 1981·5 cites·9 claims
- 1058US4140734AAlkoxyethyl dithiophosphonic acid ester halidesBAYER AG·Filed 1977·Granted Feb 20, 1979·3 cites·5 claims
- 1157US4342704AProcess for the preparation of 1,1-dichloroalkenesBAYER AG·Filed 1980·Granted Aug 3, 1982·4 cites·8 claims
- 1257US4176181ACombating pests with N-(aminomethylene)-(monothio and dithio)-phosphoric acid diester-amidesBAYER AG·Filed 1978·Granted Nov 27, 1979·3 cites·10 claims
- 1357US4159324ACombating insects, acarids and nematodes with O-(1-fluoro-2-halo-ethyl)(thiono)phosphoric(phosphonic) acid ester-amidesBAYER AG·Filed 1977·Granted Jun 26, 1979·3 cites·10 claims
- 1456US4276225ADecarbalkoxylation of carboxylic acid estersBAYER AG·Filed 1977·Granted Jun 30, 1981·4 cites·8 claims
- 1556US4119715APesticidally active O-(1-fluoro-2-halogeno-ethyl)-thionophosphoric (phosphonic) acid estersBAYER AG·Filed 1977·Granted Oct 10, 1978·3 cites·9 claims
- 1652US3950337AO-pyrazolopyrimidine-(thiono)-phosphoric(phosphonic) acid estersBAYER AG·Filed 1973·Granted Apr 13, 1976·2 cites·7 claims
- 1751US4473558A2-(Thi)oxo-1,3,2-oxazaphospholanes as synergizing agents for pesticidesBAYER AG·Filed 1982·Granted Sep 25, 1984·2 cites·17 claims
- 1850US4317783A1-Oxo-3-methyl-2-butene phosphonic acid estersBAYER AG·Filed 1980·Granted Mar 2, 1982·2 cites·1 claims
- 1950US4307033APreparation of 3,3-dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives and intermediates thereforBAYER AG·Filed 1980·Granted Dec 22, 1981·3 cites·7 claims
- 2046US4248866ACombating arthropods with N-(O-ethyl-S-n-propyl-thiophosphoryloxy)-naphthalimidesBAYER AG·Filed 1979·Granted Feb 3, 1981·1 cites·7 claims
- 2146US4237124ACombating pests with O-ethyl-S-n-propyl-N-alkylamino-methylidene thiolphosphoric acid diester-imidesBAYER AG·Filed 1979·Granted Dec 2, 1980·1 cites·8 claims
- 2245US4294762APreparation of α-cyano-benzyl estersBAYER AG·Filed 1980·Granted Oct 13, 1981·2 cites·9 claims
- 2344US4489013APreparation of α-oxo-α-(3-alkoxycarbonyl-2,2-dimethyl-cycloprop-1-yl)-methane-phosphonic acid estersBAYER AG·Filed 1983·Granted Dec 18, 1984·1 cites·7 claims
- 2444US4229444APesticidal O-alkyl-O-(1,5-disubstituted-1,2,4-triazolyl-(3)-thiono-phosphoric (phosphonic) acid esters and ester-amidesBAYER AG·Filed 1978·Granted Oct 21, 1980·1 cites·5 claims
- 2544US4055571AO-[1-Alkyl-5-substituted-mercapto-triazol(3)yl]-phosphoric(phosphonic) acid esters and ester-amidesBAYER AG·Filed 1975·Granted Oct 25, 1977·1 cites·1 claims
- 2644US3996367AN,N-dimethyl-O-[1-methyl-3-N-methylcarbaminyl-methyl-pyrazol(5)yl]-carbamic acid esterBAYER AG·Filed 1975·Granted Dec 7, 1976·1 cites·3 claims
- 2743US4678777APest-combating agents containing phosphorus-heterocyclic compoundsBAYER AG·Filed 1985·Granted Jul 7, 1987·2 cites·10 claims
- 2843US4279920A2,2-Dimethyl-3-(2-bromo-2-phenyl-vinyl)-cyclopropanecarboxylic acid 3-phenoxybenzyl esters and pesticidal useBAYER AG·Filed 1979·Granted Jul 21, 1981·1 cites·10 claims
- 2943US3940457AN-(N,N-disubstituted-aminomethylidene)-(thiono)thiol-phosphoric acid esters amidesBAYER AG·Filed 1974·Granted Feb 24, 1976·1 cites·7 claims
- 3042US4358409APreparation of styryl cyclopropane insecticide intermediatesBAYER AG·Filed 1980·Granted Nov 9, 1982·1 cites·8 claims
- 3142US3987168AO-Alkyl-O-[1-cyanoalkyl-5-substituted-mercapto-triazol(3)yl]-(thiono)-phosphoric(phosphonic) acid esters or ester-amidesBAYER AG·Filed 1975·Granted Oct 19, 1976·1 cites·10 claims
- 3242US3981994AO-Alkyl-O-[1-phenyl-5-cyanoalkylmercapto-1,2,4-triazol(3)yl]-thionophosphoric(phosphonic) acid estersBAYER AG·Filed 1975·Granted Sep 21, 1976·1 cites·9 claims
- 3342US3952098ACompositions and methods of combatting insects and acarids using pyrazolo-(thiono)-phosphoric(phosphonic) acid estersBAYER AG·Filed 1973·Granted Apr 20, 1976·1 cites·11 claims
- 3437US4166850ACombating pests with N-acetyl-0-(2-chloro-1-fluoro-ethyl)-thionophosphoric (phosphonic) acid ester-amidesBAYER AG·Filed 1978·Granted Sep 4, 1979·0 cites·8 claims
- 3536US4164575ACombating pests with O-alkyl-O-trifluoromethylsulphinylphenyl-thiono(thiol)-phosphoric acid estersBAYER AG·Filed 1978·Granted Aug 14, 1979·0 cites·10 claims
- 3635US4420435AAlpha-hydroxy-phosphonic acid estersBAYER AG·Filed 1982·Granted Dec 13, 1983·0 cites·1 claims
- 3735US4195082ACombating arthropods with 0-alkyl-0-trifluoromethylsulphonylphenyl-thiono (thiol)-phosphoric acid estersBAYER AG·Filed 1978·Granted Mar 25, 1980·0 cites·10 claims
- 3835US4134978AO-Alkyl-O-[8-chloro-quinoxal-2-yl]-thionoalkanephosphonic acid estersBAYER AG·Filed 1977·Granted Jan 16, 1979·0 cites·9 claims
- 3935US4075330AO,S-Dialkyl-o-[1-alkyl-3,4-trimethylene-pyrazol(5)yl]-thionothiolphosphoric acid esterBAYER AG·Filed 1977·Granted Feb 21, 1978·0 cites·10 claims
- 4035US4036947AO-Alkyl-N-subustituted-S-halophenoxymethyl-dithiophosphoric acid ester-amidesBAYER AG·Filed 1975·Granted Jul 19, 1977·0 cites·11 claims
- 4134US4036982AO-Alkyl-S-alkyl-O-[2-carbalkoxy-benzofuran(3)yl]-thionothiol-phosphoric acid estersBAYER AG·Filed 1976·Granted Jul 19, 1977·0 cites·10 claims
- 4234US4034085AO-[1-Alkoxyphosphoryl-3-methyl-pyrazol(5)yl]-(thiono)phosphoric acid esters and ester amidesBAYER AG·Filed 1976·Granted Jul 5, 1977·0 cites·10 claims
- 4334US3957979APesticidal N-(O-S-dialkyl(thionol)-thiolPhosphoryl)-iminoformic acid alkyl estersBAYER AG·Filed 1975·Granted May 18, 1976·0 cites·10 claims
- 4432US4126677AO,s-dialkyl-o-(1-cyanoalkyl-3-substituted)-pyrazol(5)yl-thionothiolphosphoric acid estersBAYER AG·Filed 1977·Granted Nov 21, 1978·0 cites·10 claims
- 4532US3985874AO-[1-Alkyl- or-phenyl-5-alkylmercaptoalkyl-mercapto-1,2,4-triazol(3)yl]-(thiono)-phosphoric(phosphonic, phosphinic) acid esters and ester-amidesBAYER AG·Filed 1975·Granted Oct 12, 1976·0 cites·10 claims
- 4632US3980777AO-alkyl-O-[2-alkylthio-imidazol(4)yl](thiono)-phosphoric(phosphonic) acid esters and ester-amidesBAYER AG·Filed 1975·Granted Sep 14, 1976·0 cites·10 claims
- 4731US4356127APreparation of 3-(2,2-dichloro-vinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid derivativesBAYER AG·Filed 1980·Granted Oct 26, 1982·0 cites·6 claims
- 4830US4330482AProcess for the preparation of halogenoalkenesBAYER AG·Filed 1980·Granted May 18, 1982·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →