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Duvvuri Subrahmanyam
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Hyderabad, IN
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Patents Grants
last 30 patents
Information
Patent Grant
5(S)-(2′-hydroxyethoxy)-20(S)-camptothecin and its preparation and...
Patent number
8,080,559
Issue date
Dec 20, 2011
Dr. Reddy's Laboratories Limited
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5(S)-(2′-hydroxyethoxy)-20(S)-camptothecin and its preparation and...
Patent number
7,601,733
Issue date
Oct 13, 2009
Dr. Reddy's Laboratories Limited
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Crystalline form of 5(S)-(2-hydroxyethoxy)-20(S)-camptothecin
Patent number
7,601,732
Issue date
Oct 13, 2009
Dr. Reddy's Laboratories Limited
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pharmaceutically acceptable salts of 20(s)-camptothecins
Patent number
7,071,203
Issue date
Jul 4, 2006
Dr. Reddy's Laboratories Limited
Sairam Pothukuchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Water soluble analogues of 20(S)-camptothecin
Patent number
6,214,836
Issue date
Apr 10, 2001
Dr. Reddy's Research Foundation
Subrahmanyam Duvvuri
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Water soluble analogues of 20(S)-camptothecin
Patent number
6,177,439
Issue date
Jan 23, 2001
Reddy's Research Foundation
Subrahmanyam Duvvuri
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Water soluble C-ring analogues of 20(S)-camptothecin
Patent number
5,972,955
Issue date
Oct 26, 1999
Dr. Reddy's Research Foundation
Subrahmanyam Duvvuri
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Taxane derivatives from 14-.beta.-hydroxy-10 deacetylbaccatin III
Patent number
5,763,477
Issue date
Jun 9, 1998
Dr. Reddy's Research Foundation
Subrahmanyam Duvvuri
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
PHARMACEUTICAL COMPOSITIONS OF [5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPT...
Publication number
20110177161
Publication date
Jul 21, 2011
Dr Reddy's laboratories Limited
Vijay Kumar Nekkanti
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN AND ITS PREPARATION AND...
Publication number
20100063083
Publication date
Mar 11, 2010
Dr. Reddy's Laboratories Ltd.
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Application
CRYSTALLINE FORM OF 5(S)-(2-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN
Publication number
20080076790
Publication date
Mar 27, 2008
Dr. Reddy's Laboratories Limited
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Application
5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN AND ITS PREPARATION AND...
Publication number
20080076791
Publication date
Mar 27, 2008
Dr. Reddy's Laboratories Limited
Venkateswarlu Akella
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Pharmaceutically acceptable salts of 20(s)-camptothecins
Publication number
20040198760
Publication date
Oct 7, 2004
Sairam Pothukuchi
C07 - ORGANIC CHEMISTRY