Patents by Inventor Ratnaker B. Mujumdar

Ratnaker B. Mujumdar 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).

  • Chiral indole intermediates and their fluorescent cyanine dyes containing functional groups
    Patent number: 8044203
    Abstract: This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3?-dimethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 25, 2011
    Assignees: Carnegie Mellon University, GE Healthcare UK Limited
    Inventors: Ratnaker B. Mujumdar, Richard Martin West
  • CHIRAL INDOLE INTERMEDIATES AND THEIR FLUORESCENT CYANINE DYES CONTAINING FUNCTIONAL GROUPS
    Publication number: 20100267008
    Abstract: This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3?-dimethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
    Type: Application
    Filed: October 13, 2009
    Publication date: October 21, 2010
    Applicants: Carnegie Mellon University, GE Healthcare UK Limited
    Inventors: Ratnaker B. MUJUMDAR, Richard Martin West
  • Chiral indole intermediates and their fluorescent cyanine dyes containing functional groups
    Patent number: 7615646
    Abstract: This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3?-dymethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: November 10, 2009
    Assignees: Carnegie Mellon University, GE Healthcare UK Limited
    Inventors: Ratnaker B. Mujumdar, Richard Martin West