Patents by Inventor Vijayendra Kumar

Vijayendra Kumar 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).

  • Woven carpet backing with fused staple fiber needled layer
    Patent number: 4069361
    Abstract: This invention concerns an improved shear resistant backing for pile fabrics prepared by needling a batt of staple fiber into a woven fabric of polypropylene yarn of continuous filaments or ribbons and then bonding the structure by fusion of the staple fiber of the batt.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: January 17, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Vijayendra Kumar