Patents by Inventor Vliet Hulse

Vliet Hulse 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).

  • Liquid ink
    Patent number: 6518329
    Abstract: A non-erasable liquid ink for a marking instrument including a colorant and a solvent and having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps. Also disclosed is a marking instrument filled with an ink of such a viscosity or lower in its reservoir.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 11, 2003
    Assignee: Berol Corporation
    Inventors: Nan-Jae Lin, Andrew R. Klassman, Roy Nicoll, Charles Christopher Packham, Vliet Hulse, John Thompson
  • Marking instrument including liquid ink
    Patent number: 6075070
    Abstract: A marking instrument includes a non-erasable ink including a colorant and a solvent having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: June 13, 2000
    Assignee: The Gillette Company
    Inventors: Nan-Jae Lin, Andrew R. Klassman, Roy Nicoll, Charles Christopher Packham, Vliet Hulse, John Thompson