Patents by Inventor Rolf R. Engel

Rolf R. Engel 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).

  • Topical agent for transcutaneous measurement of partial pressure of oxygen
    Patent number: 4488557
    Abstract: The invention relates to a method for treating skin for assisting transcutaneous measurement of arterial partial pressure of oxygen. The method involves applying topically 2-thenoyltrifluoroacetone to the area of skin over which the partial pressure of oxygen is to be measured.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: December 18, 1984
    Inventor: Rolf R. Engel
  • Device for shielding human skin from ambient light to facilitate tests performed thereon
    Patent number: 4450845
    Abstract: A device for shielding a portion of human skin to facilitate the performance of tests on the skin. The device includes a first layer adapted to be secured to the skin to be tested with an opening to permit selective access by a testing instrument. A second layer is positioned above the first layer in a manner permitting selective removal of at least a portion of the second layer to permit access to the skin through the opening in the first layer.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: May 29, 1984
    Assignee: Minneapolis Medical Research Foundation, Inc.
    Inventor: Rolf R. Engel