Patents by Inventor Preben Elkjaer

Preben Elkjaer 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).

  • Disposable cartridge for characterizing particles suspended in a liquid
    Publication number: 20050214928
    Abstract: The present invention relates to a particle characterization apparatus in which particles suspended in a liquid passes through an orifice or aperture for detection and characterization of the particles utilising impedance determination. In particular the invention relates to utilisation of a membrane of a polymer as a base material for precision machining of a sub-millimetre orifice. Forming the orifice in a polymer membrane facilitates the construction of a single use cartridge for haematology analysis due to low material and production costs.
    Type: Application
    Filed: June 11, 2003
    Publication date: September 29, 2005
    Inventors: Ulrik Larsen, Preben Elkjaer