Patents by Inventor Loren C. Nelson

Loren C. Nelson 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).

  • Continuous, ultrahigh modulus carbon fiber
    Patent number: 5266294
    Abstract: High modulus, pitch-based, continuous carbon fiber having a density above about 2.18 g/cc and an electrical resistivity below about 1.6 micro-ohm-meter, and a method for making.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: November 30, 1993
    Assignee: Amoco Corporation
    Inventors: David A. Schulz, Loren C. Nelson
  • Chopped carbon fibers and methods for producing the same
    Patent number: 4686096
    Abstract: Chopped carbon yarn is produced by spinning continuous pitch yarn, treating the pitch yarn with an oxidizing composition, chopping the pitch yarn into short lengths, collecting the chopped pitch yarn into a bulk form, and subjecting the chopped pitch yarn to a heat treatment in a substantially non-reactive atmosphere to produce chopped carbon yarn.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: August 11, 1987
    Assignee: Amoco Corporation
    Inventors: David A. Schulz, Loren C. Nelson