Patents by Inventor Ramanujam Rajagopalan

Ramanujam Rajagopalan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7348426
    Abstract: The present invention relates to novel antiobesity and hypocholesterolemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: March 25, 2008
    Assignees: Dr. Reddy's Laboraties Limited, Dr. Reddy's Research Foundation
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Ashok Channaveerappa Bajji, Shivaramayya Kalchar, Ranga Madhavan Gurram, Ramanujam Rajagopalan, Chakrabarti Ranjan
  • Patent number: 7348334
    Abstract: The present invention relates to novel hypolipidemic, antihyperglycemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel ?-aryl-?-oxysubstituted alkylcarboxylic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: March 25, 2008
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Javed Iqbal, Gurram Ranga Madhavan, Saibal Kumar Das, Debnath Bhunia, Ranjan Chakrabarti, Ramanujam Rajagopalan
  • Patent number: 7160912
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: January 9, 2007
    Assignees: Dr.Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Sitaram Kumar, Ramanujam Rajagopalan, Mamidi Naga Venkata Srinivasa Rao
  • Publication number: 20070004712
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Application
    Filed: August 29, 2006
    Publication date: January 4, 2007
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Kumar, Ramanujam Rajagopalan, Mamidi Naga Rao
  • Publication number: 20060293315
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Application
    Filed: August 29, 2006
    Publication date: December 28, 2006
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Kumar, Ramanujam Rajagopalan, Mamidi Naga Rao
  • Publication number: 20040102494
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them.
    Type: Application
    Filed: July 3, 2003
    Publication date: May 27, 2004
    Applicants: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Sitaram Kumar, Ramanujam Rajagopalan, Mamidi Naga Venkata Srinivasa Rao
  • Publication number: 20030013729
    Abstract: The present invention relates to novel hypolipidemic, antihyperglycemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel &bgr;-aryl-&agr;-oxysubstituted alkylcarboxylic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Application
    Filed: April 8, 2002
    Publication date: January 16, 2003
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Javed Iqbal, Gurram Ranga Madhavan, Saibal Kumar Das, Debnath Bhunia, Ranjan Chakrabarti, Ramanujam Rajagopalan
  • Patent number: 5416094
    Abstract: Described are guanidinocarbonyl isoquinolines of the formula I, ##STR1## wherein R(1) is hydrogen, (amino) (cyclo) (aryl)alk(en)yl (heteroaryl); R(2) is hydrogen, halogen, alkyl, or aryl; G is a radical of the formula VII: ##STR2## X(2), X(3) and X(4) are hydrogen, halogen, nitro, amino, alkyl, sulfonamide, (mono) (di) (lower alkyl) (amino), benzyloxy, hydroxy; X(1) hydrogen, oxygen, sulfur and NR(7)R(8), and their pharmaceutically acceptable salts; described is also a process for their preparation, their use as medicaments, and medicaments containing them for treating congestive heart failure, and arrhythmic conditions as well as cardioprotective agents in mammals.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: May 16, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Bansi Lal, Ramesh Gidwani, Ramanujam Rajagopalan, Radha Panicker, Chinnakulandai Sankar, Hans-Jochen Lang, Heinrich Englert, Wolfgang Scholz
  • Patent number: 5206241
    Abstract: Labdanes of the formula ##STR1## a process for their manufacture, pharmaceutical preparations containing an effective amount of these compounds and their use for the manufacture of a pharmaceutical preparation for treatment of cardiovascular diseases and high intraocular pressure.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: April 27, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Yatendra Khandelwal, Rajeshwari Kannan, Bansi Lal, Ramanujam Rajagopalan, Vijay A. Aroskar, deceased AliHussein N. Dohadwalla, Rashida A. Dohadwalla, Anis S. Dohadwalla, Samina A. Dohadwalla, Richard H. Rupp