Patents by Inventor Christian W. Lehmann

Christian W. Lehmann 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).

  • X-ray detection in packaging
    Patent number: 7756248
    Abstract: Angle dispersive X-ray diffraction is used to test pharmaceutical products including a dosage form inside packaging, for example a tablet inside a blister pack, without removing the dosage form from the packaging. The dosage form is aligned with a measurement system having an X-ray source for generating X-rays, X-ray optics, and an X-ray detector for detection of X-rays. Then, at least one X-ray signature is measured on a predetermined location on the dosage form. The measured X-ray signature is compared with reference X-ray signatures in a data library.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: July 13, 2010
    Assignee: Panalytical B.V.
    Inventors: Detlef Beckers, Vladimir Kogan, Jorg Bolze, Christian W. Lehmann, Harald G. Schweim, Klaus-Jurgen Steffens
  • X-RAY DETECTION IN PACKAGING
    Publication number: 20090232276
    Abstract: Angle dispersive X-ray diffraction is used to test pharmaceutical products including a dosage form inside packaging, for example a tablet inside a blister pack, without removing the dosage form from the packaging. The dosage form is aligned with a measurement system having an X-ray source for generating X-rays, X-ray optics, and an X-ray detector for detection of X-rays. Then, at least one X-ray signature is measured on a predetermined location on the dosage form. The measured X-ray signature is compared with reference X-ray signatures in a data library.
    Type: Application
    Filed: February 12, 2009
    Publication date: September 17, 2009
    Inventors: Vladimir Kogan, Detlef Beckers, Jorg Bolze, Christian W. Lehmann, Harald G. Schweim, Klaus-Jurgen Steffens
  • Rapid X-ray diffraction screening method of polymorph libraries created in multi-well plates
    Patent number: 6507636
    Abstract: Method and device for rapid characterization of arrays of crystalline, polycrystalline or amorphous materials; in particular for the formation and X-ray diffraction analysis of polymorph libraries and the discovery of new crystal forms. According to one aspect, a multi-well plate comprising a masking plate with an array of openings and a removable base plate is used to crystallize precipitates. X-ray diffraction analysis is performed by scanning an X-ray beam over the base plate and recording diffractograms of the crystalline precipitates.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: January 14, 2003
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Christian W. Lehmann