Patents by Inventor Prabhat Sakya

Prabhat Sakya 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).

  • Method for preparing fabric softening compositions
    Patent number: 6436896
    Abstract: The invention provides a method for the preparation of an aqueous fabric softening composition comprising; (i) at least one cationic fabric softening compound having two or more alkyl or alkenyl chains each having an average chain length equal to, or greater than, C8 and (ii) at least one oily sugar derivative, wherein the cationic fabric softening compound (i), and/or the oily sugar derivative (ii) is/are separately mixed with another active component of the fabric softening composition to form a pre-mixture prior to the admixing of the softening compound (i) with the oily sugar derivative (ii). The invention also provides an aqueous based fabric softening composition produced by the method of the invention, and, a method of treating fabrics with the composition so produced.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 20, 2002
    Assignee: Unilever Home & Personal Care USA, a divison of Conopco, Inc.
    Inventors: Ian David Charlton, David Stephen Grainger, Mansur Sultan Mohammadi, Prabhat Sakya
  • Method for preparing fabric softening compositions
    Publication number: 20010006937
    Abstract: The invention provides a method for the preparation of an aqueous fabric softening composition comprising;
    Type: Application
    Filed: December 20, 2000
    Publication date: July 5, 2001
    Inventors: Ian David Charlton, David Stephen Grainger, Mansur Sultan Mohammadi, Prabhat Sakya