Patents by Inventor Randolph L. Martin

Randolph L. Martin 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).

  • Cooled headwear
    Patent number: 4815144
    Abstract: An improvement for a cap of the type which uses a cooling pouch which contains a freezable liquid or gel and inserted in the forehead area of the cap. The improvement consists of segmenting the cooling pouch so that it can easily be made to conform to the shape of a wearer's forehead and a plastic drain channel which catches and retains any condensate which may form on the cooling pouch during periods of high humidity.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: March 28, 1989
    Inventor: Randolph L. Martin