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last 30 patents
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Patent Grant
Process for producing optically active azetidine-2-carboxylic acid...
Patent number
6,410,279
Issue date
Jun 25, 2002
Sumitomo Chemical Company, Limited
Junko Kudo
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Method for purifying pyruvic acid compounds
Patent number
6,348,617
Issue date
Feb 19, 2002
Sumitomo Chemical Company, Limited
Hideki Ushio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing optically active azetidine-2-carboxylic acid...
Patent number
6,162,621
Issue date
Dec 19, 2000
Sumitomo Chemical Company, Ltd.
Junko Kudo
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Process for producing optically active n-substituted azetidine-2 ca...
Patent number
6,143,554
Issue date
Nov 7, 2000
Sumitomo Chemical Company, Limited
Yoshiki Takashima
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing optically active azetidine-2-carboxylic acid
Patent number
6,114,543
Issue date
Sep 5, 2000
Sumitomo Chemical Company, Limited
Hideki Ushio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing optically active azetidine-2-carboxylic acid
Patent number
5,880,291
Issue date
Mar 9, 1999
Sumitomo Chemical Company, Limited
Hideki Ushio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing propargylamine compounds
Patent number
5,756,769
Issue date
May 26, 1998
Sumitomo Chemical Company, Ltd.
Shinzo Seko
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for treatment of hydroperoxide mixture
Patent number
5,639,922
Issue date
Jun 17, 1997
Sumitomo Chemical Company, Limited
Yoichi Ikeda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of cresols
Patent number
5,600,026
Issue date
Feb 4, 1997
Sumitomo Chemical Company, Limited
Kiyoshi Ikimi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing aromatic amide compounds
Patent number
5,442,114
Issue date
Aug 15, 1995
Sumitomo Chemical Company, Limited
Kan Takamine
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of cresols
Patent number
5,399,791
Issue date
Mar 21, 1995
Suitomo Chemical Company, Limited
Kiyoshi Ikimi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing halogenated alkyl
Patent number
5,138,109
Issue date
Aug 11, 1992
Sumitomo Chemical Company, Ltd.
Michio Yamamoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 2,3-dimethylbutenes
Patent number
5,034,566
Issue date
Jul 23, 1991
Sumitomo Chemical Company, Limited
Masaru Ishino
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active imidazolidin-2-one derivatives
Patent number
4,403,096
Issue date
Sep 6, 1983
Sumitomo Chemical Company, Limited
Motoo Hazama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing an enamide
Patent number
4,194,050
Issue date
Mar 18, 1980
Sumitomo Chemical Company, Limited
Motoo Hazama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Racemization of an optically active lysine alkyl ester
Patent number
4,169,207
Issue date
Sep 25, 1979
Sumitomo Chemical Company, Limited
Motoo Hazama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing an enamide
Patent number
4,137,417
Issue date
Jan 30, 1979
Sumitomo Chemical Company, Limited
Motoo Hazama
C07 - ORGANIC CHEMISTRY