Patents by Inventor Ralph Stephen Blake

Ralph Stephen Blake 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).

  • Cut resistant fabric, apparel, and yarn
    Patent number: 5721179
    Abstract: A cut resistant fabric is made from woven or knitted yarn; the yarn includes a cut resistant fiber having a tenacity of less than about 10 grams/denier. A cut resistant fabric is made from woven or knitted yarn. The yarn includes a polyethylene fiber having a tenacity of less than about 10 grams/denier and a molecular weight of about 100,000. The yarn may be in the form of a composite yarn having a core and a wrap. The polyethylene fiber is in the wrap.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: February 24, 1998
    Assignee: Hoechst Celanese Corporation
    Inventors: Lie Shi, Ralph Stephen Blake