Patents by Inventor Sirisilla Raju

Sirisilla Raju 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).

  • PHARMACEUTICAL COMPOSITIONS OF [5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN
    Publication number: 20110177161
    Abstract: There is provided a powder composition for use in a pharmaceutical product, the composition including a) 5(S)-(2?-hydroxyethoxy)-20(S)-CPT; at least one cyclodextrin; wherein 5(S)-(2?-hydroxyethoxy)-20(S)-CPT includes less than 5% of 5(R)-(2?-hydroxyethoxy)-20(S)-CPT. Preferably, in the powder composition, 5(S)-(2?-hydroxyethoxy)-20(S)-CPT is substantially free from said 5(R)-(2?-hydroxyethoxy)-20(S)-CPT.
    Type: Application
    Filed: May 27, 2008
    Publication date: July 21, 2011
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Vijay Kumar Nekkanti, Pradeep Jairao Karatgi, Mahesh Paithankar, Raviraj Sukumar Pillai, Akella Venkateswarlu, Alikunju Shanvas, Reka Ajay Kumar, Mullangi Ramesh, Sirisilla Raju, Duvvuri Subrahmanyam, Rajagopal Sriram
  • Process for the preparation of 3-aryl-2-hydroxy propanoic acid
    Patent number: 6559335
    Abstract: The present invention relates to an improved process for the preparation of 3-aryl-2-hydroxy propanoic acid derivatives of the formula (1) useful as an intermediate for the preparation of many pharmaceutically active compounds.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: May 6, 2003
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Potlapally Rajender Kumar, Siripragada Mahender Rao, Kotra Narasimha Murthy, Sirisilla Raju, Mamillapalli Ramabhadra Sarma, Gaddam Om Reddy
  • Process for the preparation of 3-aryl-2-hydroxy propanoic acid
    Publication number: 20020177726
    Abstract: The present invention relates to an improved process for the preparation of 3-aryl-2-hydroxy propanoic acid derivatives of the formula (1) 1
    Type: Application
    Filed: April 17, 2001
    Publication date: November 28, 2002
    Applicant: DR. REDDY'S RESEARCH FOUNDATION
    Inventors: Potlapally Rajender Kumar, Siripragada Mahender Rao, Kotra Narasimha Murthy, Sirisilla Raju, Mamillapalli Ramabhadra Sarma, Gaddam Om Reddy