Patents by Inventor Peter Michael Lancaster

Peter Michael Lancaster 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).

  • Polymer filaments having profiled cross-section
    Patent number: 6855425
    Abstract: The invention provides a profiled polymer filament having an open hollow cross-sectional shape normal to the longitudinal axis of the filament, wherein the cross-section is dimensioned to prevent the filament from interlocking with a second filament of the same cross-section. The invention also provides methods of manufacture of such filaments by melt spinning a polyamide, and spinnerets suitable for use in melt spinning such filaments.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: February 15, 2005
    Assignee: Invista North America S.A.R.L.
    Inventor: Peter Michael Lancaster
  • Polymer filaments having profiled cross-section
    Publication number: 20030209002
    Abstract: The invention provides a profiled polymer filament having an open hollow cross-sectional shape normal to the longitudinal axis of the filament, wherein the cross-section is dimensioned to prevent the filament from interlocking with a second filament of the same cross-section. The invention also provides methods of manufacture of such filaments by melt spinning a polyamide, and spinnerets suitable for use in melt spinning such filaments.
    Type: Application
    Filed: January 16, 2003
    Publication date: November 13, 2003
    Inventor: Peter Michael Lancaster