Patents by Inventor K Ranjan Samant

K Ranjan Samant 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 polyamide filaments
    Patent number: 6899836
    Abstract: The present invention relates to methods for making polyamide filaments, such as nylon 6,6, having high tensile strength. The invention also relates to yarns and other articles formed from such filaments. The invention is particularly useful for providing a filament yarn with tenacity equal or superior to the prior art at high spinning process speeds while retaining the ability to draw the yarn. The invention further relates to providing a filament yarn extruded from a delustered or pigmented polyamide polymer.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: May 31, 2005
    Assignee: Invista North America S.a r.l.
    Inventors: K Ranjan Samant, George Vassilatos
  • Method and apparatus for producing polyamide filaments of high tensile strength by high speed spinning
    Publication number: 20030219595
    Abstract: The present invention relates to methods for making polyamide filaments, such as nylon 6,6, having high tensile strength. The invention also relates to yarns and other articles formed from such filaments. The invention is particularly useful for providing a filament yarn with tenacity equal or superior to the prior art at high spinning process speeds while retaining the ability to draw the yarn. The invention further relates to providing a filament yarn extruded from a delustered or pigmented polyamide polymer.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Inventors: K. Ranjan Samant, George Vassilatos