Patents by Inventor Purushottam J. Kangle

Purushottam J. Kangle 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).

  • Dyeing and printing processes
    Patent number: 4225313
    Abstract: The invention relates to a process for dyeing or printing textile material, wherein the textile material is first impregnated with a solution or dispersion containing a dyestuff and the impregnated textile material is then treated with the superheated vapor of organic solvents.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: September 30, 1980
    Assignee: Ciba-Geigy, AG
    Inventors: Purushottam J. Kangle, Branimir Milicevic
  • Process for dyeing fully synthetic textile material
    Patent number: 4081240
    Abstract: A process for dyeing textile material of fully synthetic polymers ready for weaving by the exhaustion method, wherein dyeing is carried out at a temperature of at least 70.degree. C in a homogenous solution of one or several dyestuffs in a hydrophobic or hydrophilic solvent or solvent mixture, any sulphur atoms present in the solvent or solvent mixture being divalent or hexavalent.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: March 28, 1978
    Assignee: Ciba-Geigy AG
    Inventors: Keshav Vinayak Datye, Purushottam J. Kangle, Branimir Milicevic, Alfred Litzler, Eugen Johann Koller