Patents by Inventor Raj Pal Singh

Raj Pal Singh 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).

  • Diol-functionalized UV absorber
    Patent number: 6307055
    Abstract: The invention pertains to novel UV absorbing diol of the general formula: wherein R1 is hydrogen, tert-butyl; X1 is selected the group consisting of hydrogen, halogen, tert-butyl and C1 to C12 alkoxy; R2 is C1 to C8 linear or branched alkyl, and to a process for the preparation thereof.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: October 23, 2001
    Assignee: Council of Scientific and Industrial Research
    Inventors: Paragkumar Nathalal Thanki, Raj Pal Singh
  • Bromo-functionalized benzotriazole UV absorbers
    Patent number: 6284895
    Abstract: The invention pertains to bromo functionalized benzotriazole UV absorber of the general formula 1 wherein R1 is hydrogen, tert-butyl; X1 is selected the group consisting of hydrogen, halogen, tert-butyl and C1 to C12 alkoxy.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: September 4, 2001
    Assignee: Council of Scientific and Industrial Research
    Inventors: Paragkumar Nathalal Thanki, Raj Pal Singh