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Hellmut Hoffmann
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Wuppertal-Elberfeld, DT
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last 30 patents
Information
Patent Grant
O,S-Dialkyl-o-[1-alkyl-3,4-trimethylene-pyrazol(5)yl]-thionothiolph...
Patent number
4,075,330
Issue date
Feb 21, 1978
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-[1-Alkyl-5-substituted-mercapto-triazol(3)yl]-phosphoric(phosphon...
Patent number
4,055,571
Issue date
Oct 25, 1977
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-Alkyl-S-alkyl-O-[2-carbalkoxy-benzofuran(3)yl]-thionothiol-phosph...
Patent number
4,036,982
Issue date
Jul 19, 1977
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-Alkyl-N-subustituted-S-halophenoxymethyl-dithiophosphoric acid es...
Patent number
4,036,947
Issue date
Jul 19, 1977
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-[1-Alkoxyphosphoryl-3-methyl-pyrazol(5)yl]-(thiono)phosphoric aci...
Patent number
4,034,085
Issue date
Jul 5, 1977
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-Dithiophosphoryl-carbamic acid esters
Patent number
4,001,404
Issue date
Jan 4, 1977
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N,N-dimethyl-O-[1-methyl-3-N-methylcarbaminyl-methyl-pyrazol(5)yl]-...
Patent number
3,996,367
Issue date
Dec 7, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-Alkyl-O-[1-cyanoalkyl-5-substituted-mercapto-triazol(3)yl]-(thion...
Patent number
3,987,168
Issue date
Oct 19, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-[1-Alkyl- or-phenyl-5-alkylmercaptoalkyl-mercapto-1,2,4-triazol(3...
Patent number
3,985,874
Issue date
Oct 12, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-Alkyl-O-[1-phenyl-5-cyanoalkylmercapto-1,2,4-triazol(3)yl]-thiono...
Patent number
3,981,994
Issue date
Sep 21, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-alkyl-O-[2-alkylthio-imidazol(4)yl](thiono)-phosphoric(phosphonic...
Patent number
3,980,777
Issue date
Sep 14, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-(2-Carbisopropoxyphenyl)-thiono-phosphoric (phosphonic) acid este...
Patent number
3,975,523
Issue date
Aug 17, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-[3-methyl-1,3,4-triazole-(2,3,-b)-thiazol(6)yl]-(thiono)-phosphor...
Patent number
3,974,171
Issue date
Aug 10, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-Alkyl-o-[3-methyl-1,2,4-triazolo-(2,3,b)-thiazol(6)-yl](thiono)-p...
Patent number
3,957,977
Issue date
May 18, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pesticidal N-(O-S-dialkyl(thionol)-thiolPhosphoryl)-iminoformic aci...
Patent number
3,957,979
Issue date
May 18, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compositions and methods of combatting insects and acarids using py...
Patent number
3,952,098
Issue date
Apr 20, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-pyrazolopyrimidine-(thiono)-phosphoric(phosphonic) acid esters
Patent number
3,950,337
Issue date
Apr 13, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-[N',N'-disubstituted-aminomethylidene]-(thiono)thiol-phosphoric a...
Patent number
3,949,022
Issue date
Apr 6, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-(N,N-disubstituted-aminomethylidene)-(thiono)thiol-phosphoric aci...
Patent number
3,940,457
Issue date
Feb 24, 1976
Bayer Aktiengesellschaft
Hellmut Hoffmann
C07 - ORGANIC CHEMISTRY