Patents by Inventor Horst-Joachim Propp

Horst-Joachim Propp 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).

  • Multi-component protective covering for construction parts designed to protect against the effects of lightning
    Patent number: 4186237
    Abstract: Construction parts are protected against lightening by a layer which releases a cloud of ionized and ionizable particles to spread the area affected by the lightening flash and to fan out the current path. The layer may include additives which swell when heated to increase the volume and density of the cloud. An electrically and thermal conductive layer or two such layers each having predominantly one of these properties is provided underneath the releasing layer.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: January 29, 1980
    Assignee: Vereinigte Flugtechnische Werke-Fokker GmbH
    Inventor: Horst-Joachim Propp