Patents by Inventor Wolfgang Kircher

Wolfgang Kircher 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).

  • Apparatus, surgical microscopy system, and method for compensating a balancing error in a stand for a surgical microscope
    Patent number: 11199289
    Abstract: A stand for a surgical microscope includes a first stand part including a first bearing and a second bearing, a shaft arranged in the first bearing and defining a rotation axis, a second stand part fixedly connected to the shaft, mounted on the first stand part together with the shaft pivotably about the rotation axis, and including a force transmission point, a lever part mounted on the second stand part at the force transmission point, arranged pivotably about the rotation axis, and including a third bearing, and a torque compensation assembly applying a counter torque to the second stand part to compensate a load torque including a dynamic load torque occurring when the second stand part is pivoted about the rotation axis and a static load torque resulting from a gravitation force acting on the second stand part and on elements mounted on the second stand part.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 14, 2021
    Assignee: Carl Zeiss Meditec AG
    Inventors: Axel Lorenz, Florian Bart, Wolfgang Kircher
  • STAND FOR A SURGICAL MICROSCOPE, SURGICAL MICROSCOPY SYSTEM, AND METHOD FOR COMPENSATION A BALANCING ERROR
    Publication number: 20210080046
    Abstract: A stand for a surgical microscope includes a first stand part including a first bearing and a second bearing, a shaft arranged in the first bearing and defining a rotation axis, a second stand part fixedly connected to the shaft, mounted on the first stand part together with the shaft pivotably about the rotation axis, and including a force transmission point, a lever part mounted on the second stand part at the force transmission point, arranged pivotably about the rotation axis, and including a third bearing, and a torque compensation assembly applying a counter torque to the second stand part to compensate a load torque including a dynamic load torque occurring when the second stand part is pivoted about the rotation axis and a static load torque resulting from a gravitation force acting on the second stand part and on elements mounted on the second stand part.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Inventors: Axel Lorenz, Florian Bart, Wolfgang Kircher
  • Silicon dioxide-containing compositions and process for their preparation and use
    Patent number: 4169069
    Abstract: A process for the incorporation of active materials into silicon dioxide-containing carrier materials, comprises encapsulating the active material with liquid polyalkoxysiloxane, polyorganoalkoxysiloxane or a mixture thereof and subsequently effecting hydrolytic polycondensation of the siloxane. The resultant enveloped active material has readily controllable release properties.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: September 25, 1979
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Unger, Horst Kramer, Herbert Rupprecht, Wolfgang Kircher