Patents by Inventor Stephan Trapp

Stephan Trapp 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).

  • Strain gage having a thin discontinuous metal layer
    Patent number: 4812800
    Abstract: A highly sensitive strain gage containing a thin discontinuous metal layer whose conduction effect is based predominantly on the tunnel effect and which is applied uniformly onto a thin, nonmetallic, dielectric or semiconducting substrate such as uniaxially oriented or partially crystalline plastic film, an ordered ultrathin layer or a silicone-coated plastic film, the diffusion processes in the applied metal layer being reduced and its structural stability improved as a result of interaction of the substrate with the metal layer.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: March 14, 1989
    Assignee: Basf Aktiengesellschaft
    Inventors: Harald Fuchs, Herbert Gleiter, Stephan Trapp, Juergen Petermann