Patents by Inventor James D. Lawson

James D. Lawson 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).

  • Cap holder
    Patent number: 5137157
    Abstract: A cap holding device having a group of three restraining prongs positioned on a common base.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: August 11, 1992
    Inventor: James D. Lawson