Patents by Inventor Daniel R. Koenig

Daniel R. Koenig 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).

  • Enhancement of fabrication yields of nanomechanical devices by thin film deposition
    Patent number: 7041611
    Abstract: A protective film is applied onto a nanostructural feature supported on a sacrificial layer by energy beam assisted deposit of material from a vapor through which the beam passes. A wet etchant is applied to etch away the sacrificial layer beneath the nanostructural feature to leave it suspended as a cantilever or bridge. The film protects the structural feature from damage during etching, and may be removed after the wet etching process is completed.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: May 9, 2006
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Robert H. Blick, Daniel R. Koenig
  • Entirely passive heat pipe apparatus capable of operating against gravity
    Patent number: 4336837
    Abstract: The disclosure is directed to an entirely passive heat pipe apparatus capable of operating against gravity for vertical distances in the order of 3 to 7 meters and more. A return conduit into which an inert gas is introduced is used to lower the specific density of the working fluid so that it may be returned a greater vertical distance from condenser to evaporator.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: June 29, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Daniel R. Koenig