Patents by Inventor Mark P. Tilkens

Mark P. Tilkens 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).

  • Patent number: 5189265
    Abstract: A hearing-enhancing device includes a cap adapted to be worn on a person's head, and a pair of hearing-enhancing members connectable to the cap. The cap size can be adjusted to accommodate varying user head sizes. The hearing-enhancing members each act to substantially enclose the person's ears leaving a forwardly facing opening allowing sound to enter therein, and are constructed so as to direct sound to the person's ears. A connection arrangement is provided between the cap and the hearing-enhancing members for allowing the members to be moved to varying locations on the cap, to provide proper positioning of the members even when the cap is adjusted to accommodate different user head sizes.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: February 23, 1993
    Inventor: Mark P. Tilkens