Patents by Inventor Dipan Ray

Dipan Ray 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).

  • Process of reducing the bitter taste of water soluble actives by co-grinding the active with ? cyclodextrin
    Patent number: 8715731
    Abstract: A process for reducing the intensity of the intrinsic bitter taste of a water soluble active which comprises dry mixing of said active with ?-cyclodextrin.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: May 6, 2014
    Assignee: ISP Investments Inc.
    Inventors: Rama Haldar, Dipan Ray, Deborah Tobia, Donald Koelmel, Sidney Etienne
  • Process of reducing the bitter taste of water soluble actives by co-grinding the acitve with beta cyclodextrin
    Publication number: 20070259931
    Abstract: A process for reducing the intensity of the intrinsic bitter taste of a water soluble active which comprises dry mixing of said active with ?-cyclodextrin.
    Type: Application
    Filed: March 21, 2007
    Publication date: November 8, 2007
    Inventors: Rama Haldar, Dipan Ray, Deborah Tobia, Donald Koelmel, Sidney Etienne
  • Synergistic binder composition, method for making same, and tablets of an active and said binder having advantageous hardness and friability
    Publication number: 20070122472
    Abstract: Tablets of a pharmaceutical, nutritional or vitamin active compound or composition, e.g. a poorly compressible drug are made by direct compression using a synergistic binder composition of co-processed (a) copolymer of vinylpyrrolidone (VP) and vinyl acetate (VA) and (b) microcrystalline cellulose (MCC), in a wt. ratio of (a):(b) of 1-30:99-70, which is spray dried to provide a readily compressible excipient binder powder for such active. The tablets obtained herein have advantageous hardness and friability at an acceptable compression force.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Rama Haldar, Dipan Ray, Timothy Bee, Sidney Etienne, Su-Jane Cheng
  • Process and apparatus for forming agglomerates of a powder composition of an active and binder
    Publication number: 20070060494
    Abstract: A process and apparatus for forming agglomerates of a powder composition of an active and binder such as a homopolymer or copolymer which includes passing the composition through a hot roller compactor to heat said binder material above its glass transition temperature.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 15, 2007
    Inventors: Rama Haldar, Dipan Ray, William Drefko, Sidney Etienne