Patents by Inventor Pulla Singam

Pulla Singam 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).

  • Ritonavir bis-hydrochloride
    Patent number: 8598216
    Abstract: The invention relates to ritonavir bis-hydrochloride, processes for the preparation of the ritonavir bis-hydrochloride, pharmaceutical compositions containing the ritonavir bis-hydrochloride and made from it, and methods of using the ritonavir bis-hydrochloride to inhibit HIV protease or enhance the pharmacokinetics of compounds which are metabolized by cytochrome P450 3A4.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 3, 2013
    Assignee: Abbvie Inc.
    Inventors: Maurizio Acquasaliente, Didier Houllemare, Geoff Zhang, Pulla Singam, John Morris, Kennan Marsh, Martin Babcock, John Pavlina, Yi Shi, Yuchuan Gong
  • Synthesis of acyclic nucleoside derivatives
    Publication number: 20050250795
    Abstract: Methods and novel intermediates for the preparation of acyclic nucleoside derivatives of the formula: where one of R1 and R2 is an amino acid acyl group and the other of R1 and R2 is a —C(O)C3-C21 saturated or monounsaturated, optionally substituted alkyl and R3 is OH or H; or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 10, 2005
    Applicant: Medivir AB
    Inventors: M. Leanna, Steven Hannick, Michael Rasmussen, Jien-Heh Tien, Lakshmi Bhagavatula, Pulla Singam, Bradley Gates, Lawrence Kolaczkowski, Ramesh Patel, Greg Wayne, Greg Lannoye, Weijiang Zhang, Zhenping Tian, Kirill Lukin, Bikshandarkoil Narayanan, David Riley, Howard Morton, Sou-Jen Chang, Cynthia Curty, Daniel Plata, John Bellettini, Bhadra Shelat, Tiffany Spitz, Cheng-Xi Yang