Patents by Inventor Michelle H. Watkins

Michelle H. Watkins 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).

  • Process of making partially oriented poly(trimethylene terephthalate) yarn
    Patent number: 6998079
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: February 14, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Partially oriented poly(trimethylene terephthalate) yarn
    Publication number: 20040134182
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 15, 2004
    Inventors: James M. Howell, Joe Forrest London, Michelle H. Watkins
  • Processes of preparing partially oriented and draw textured poly(trimethylene terephthalate) yarns
    Patent number: 6672047
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: January 6, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Processes for making poly (trimethylene terephthalate) yarns
    Patent number: 6663806
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)].
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 16, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Bicomponent fibers with high wicking rate
    Patent number: 6656586
    Abstract: The invention provides a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) and having: a weight ratio of poly(ethylene terephthalate) to poly(trimethylene terephthalate) of at least about 30:70 and no more than about 70:30, a scalloped oval cross-section selected from the group consisting of side-by-side and eccentric sheath-core; a cross-section long axis; a boundary between the poly(ethylene terephthalate) and the poly(trimethylene terephthalate) that is substantially parallel to the cross-section long axis; and a plurality of longitudinal grooves.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: December 2, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James V. Hartzog, James M. Howell, Michelle H. Watkins, Claudia Schultze
  • Bicomponent fibers with high wicking rate
    Publication number: 20030082377
    Abstract: The invention provides a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) and having:
    Type: Application
    Filed: August 27, 2002
    Publication date: May 1, 2003
    Inventors: James V. Hartzog, James M. Howell, Michelle H. Watkins, Claudia Schultze
  • Fine denier yarn from poly (trimethylene terephthalate)
    Patent number: 6383632
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)] are disclosed.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 7, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Draw textured poly(trimethylene terephthalate) yarn
    Patent number: 6333106
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 25, 2001
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: James M Howell, Joe F London, Jr., Michelle H Watkins
  • Fine denier yarn from poly (trimethylene terephthalate)
    Publication number: 20010053442
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)] are disclosed.
    Type: Application
    Filed: February 28, 2001
    Publication date: December 20, 2001
    Inventors: James M. Howell, Joe Forrest London, Michelle H. Watkins
  • Partially oriented poly (trimethylene terephthalate) yarn
    Publication number: 20010031356
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yam suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yam are disclosed.
    Type: Application
    Filed: March 13, 2001
    Publication date: October 18, 2001
    Inventors: James M. Howell, Joe F. London, Michelle H. Watkins
  • Partially oriented poly (trimethylene terephthalate) yarn
    Publication number: 20010030378
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 18, 2001
    Inventors: James M. Howell, Joe F. London, Michelle H. Watkins
  • Processes for making poly (trimethylene terephthalate) yarns
    Publication number: 20010030377
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)] are disclosed.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 18, 2001
    Inventors: James M. Howell, Joe Forrest London, Michelle H. Watkins
  • Partially oriented poly(trimethylene terephthalate) yarn
    Patent number: 6287688
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: September 11, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins