Patents by Inventor Paramanda Gupta

Paramanda Gupta 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).

  • News ink
    Patent number: 4321094
    Abstract: A news ink of low misting properties comprising a dispersion of a news ink pigment in a hydrocarbon oil, wherein the oil has the following physical properties:Color: water whiteAromatic content: zeroRefractive index: 1.467-1.480Specific gravity: 0.850-0.879Viscosity, cSt/40.degree. C.: 9.38-439.7Aniline point, .degree.C.: 96-138.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: March 23, 1982
    Assignee: Canada Printing Ink
    Inventors: Colin B. Batt, David Daffern, Paramanda Gupta