Patents by Inventor Karl H. A. Sirninger

Karl H. A. Sirninger 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).

  • Device for relieving tension in head skin
    Patent number: 5140978
    Abstract: A device (1) for wearing on a human head to relieve tension in skin covering a skull region and so promote hair growth from the skin. The device (1) includes a carrier member (2) for positioning on a human skull; and, grip means (5) on the carrier member (2) at spaced locations so that, in use of the device (1). The grip means (5) grippingly engages skin beneath the cranium region of the skull and applies an upwardly directed force causing the skin to be shifted more up onto the cranium region, thereby relieving tension within the skin covering that cranium region.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: August 25, 1992
    Inventor: Karl H. A. Sirninger