Patents by Inventor James Victor Hartzog

James Victor Hartzog 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).

  • Air jet piddling
    Patent number: 6131785
    Abstract: An aspirating jet piddler that has no moving parts and operates to achieve a soft laydown with reduced tangling.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: October 17, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Frank William Anderson, James Victor Hartzog, Darren Scott Quinn
  • Sheath-core polyester fiber including an antimicrobial agent
    Patent number: 6037057
    Abstract: A sheath-core polyester fiber where the sheath includes an antimicrobial agent and the sheath comprises less than thirty percent of the total cross-sectional area of the fiber. The antimicrobial agent is selected such that the relative viscosity of the fiber lies above a defined spinnability limit, so that spinning is possible. With no loss in antimicrobial efficacy, the fiber of the present invention may be slickened with a siliconized finish in order to reduce fiber friction, thus giving the fiber a silky feel.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: March 14, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Victor Hartzog, Darren Scott Quinn
  • Air jet piddling
    Patent number: 6032844
    Abstract: An aspirating jet piddler that has no moving parts and operates by swirling a textile tow line pneumatically to achieve a soft laydown with reduced tangling.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: March 7, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Victor Hartzog, Darren Scott Quinn
  • Polyester fiber
    Patent number: 5891568
    Abstract: Improved polyester fibers, filling materials and filled articles are provided by fibers of helical configuration, high void content and low friction.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: April 6, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Victor Hartzog, Juergen Musch, Darren Scott Quinn