Patents by Inventor William L. Hofferbert, Jr.

William L. Hofferbert, Jr. 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).

  • Solution annealing of aramid and structurally related fibers
    Patent number: 4227885
    Abstract: A process for improving tensile properties of aramid fibers and structurally related fibers is described. The process involves soaking the fibers in a liquid tertiary amine maintained at a temperature of at least 80.degree. C.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: October 14, 1980
    Assignee: Monsanto Company
    Inventors: William L. Hofferbert, Jr., Jack Preston