Patents by Inventor Helmut Knoffe

Helmut Knoffe 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).

  • Cuvette with pivotally connected arms
    Patent number: 9677994
    Abstract: Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 13, 2017
    Inventors: Kurt Harnack, Helmut Knoffe, Peter Scheffler, Wolfgang Goemann-Thoss, Sven Eikelmann, Christoph Jolie
  • Cuvette with insert and adapter
    Patent number: 8842274
    Abstract: Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 23, 2014
    Assignee: Eppendorf AG
    Inventors: Kurt Harnack, Helmut Knoffe, Peter Scheffler, Wolfgang Goemann-Thoss, Sven Eikelmann, Christoph Jolie
  • Cuvette, Insert, Adapter and Method for Optically Examining Small Amounts of Liquid
    Publication number: 20110170094
    Abstract: Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.
    Type: Application
    Filed: March 23, 2009
    Publication date: July 14, 2011
    Applicant: EPPENDORF AG
    Inventors: Kurt Harnack, Helmut Knoffe, Peter Scheffler, Wolfgang Goemann-Thoss, Sven Eikelmann