Patents by Inventor Himansu R. Bhattacharjee

Himansu R. Bhattacharjee 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).

  • Anti-static cleanroom products and methods of making same
    Patent number: 6685989
    Abstract: Anti-static cleanroom products having a coating of conductive polymeric particulates which decreases the surface resistivity of the products. Preferably, the particulates are pyrrole polymers. The anti-static properties are achieved by depositing conductive polymer particles onto the non-conductive substrate surface. The anti-static products include cleanroom wipers, stationery products (notebooks and writing instruments), garments and swabs (polyurethane foam tipped). The cleanroom stationery products include notebooks comprising polyethylene impregnated with silica. The invention also includes anti-static plastic gloves.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: February 3, 2004
    Assignee: Illinois Tool Works, Inc.
    Inventors: Himansu R. Bhattacharjee, Edward Paley
  • Anti-static cleanroom products and methods of making same
    Patent number: 6235660
    Abstract: Anti-static cleanroom products having a coating of conductive polymeric particulates which decreases the surface resistivity of the products. Preferably, the particulates are pyrrole polymers. The anti-static properties are achieved by depositing conductive polymer particles onto the non-conductive substrate surface. The anti-static products include cleanroom wipers, stationery products (notebooks and writing instruments), garments and swabs (polyurethane foam tipped). The cleanroom stationery products include notebooks comprising polyethylene impregnated with silica. The invention also includes anti-static plastic gloves.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: May 22, 2001
    Assignee: The Texwipe Company LLC
    Inventors: Himansu R. Bhattacharjee, Edward Paley
  • Anti-static cleanroom products and methods of making same
    Publication number: 20010000769
    Abstract: Anti-static cleanroom products having a coating of conductive polymeric particulates which decreases the surface resistivity of the products. Preferably, the particulates are pyrrole polymers. The anti-static properties are achieved by depositing conductive polymer particles onto the non-conductive substrate surface. The anti-static products include cleanroom wipers, stationery products (notebooks and writing instruments), garments and swabs (polyurethane foam tipped). The cleanroom stationery products include notebooks comprising polyethylene impregnated with silica. The invention also includes anti-static plastic gloves.
    Type: Application
    Filed: December 20, 2000
    Publication date: May 3, 2001
    Applicant: The Texwipe Company LLC.
    Inventors: Himansu R. Bhattacharjee, Edward Paley
  • Anti-static cleanroom products and methods and methods of making same
    Patent number: 5736469
    Abstract: Anti-static cleanroom products having a coating of conductive polymeric particulates which decreases the surface resistivity of the products. Preferably, the particulates are pyrrole polymers. The anti-static properties are achieved by depositing conductive polymer particles onto the non-conductive substrate surface. The anti-static products include cleanroom wipers, stationery products (notebooks and writing instruments), garments and swabs (polyurethane foam tipped). The cleanroom stationery products include notebooks comprising polyethylene impregnated with silica. The invention also includes anti-static plastic gloves.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: April 7, 1998
    Assignee: The Texwipe Company LLC
    Inventors: Himansu R. Bhattacharjee, Edward Paley