Patents by Inventor Eric A. Darnell

Eric A. Darnell 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).

  • Impact protective headgear
    Patent number: 5271103
    Abstract: Impact protective headgear is disclosed wherein impact protection to the brain case of the skull is at least in part provided by a molded skull enclosing component composed of a relatively thick and stiff cellular polymer material. Provisions are disclosed by which the relatively stiff molded component is rendered size adjustable.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 21, 1993
    Inventor: Eric A. Darnell