Patents by Inventor Joachim H. Wendorff

Joachim H. Wendorff 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).

  • Production of polymer fibres having nanoscale morphologies
    Publication number: 20040013873
    Abstract: The invention relates to porous fiber comprising a polymeric material, said fiber having a diameter of 20 to 4 000 nm and pores in the form of channels extending at least to the core of said fiber and/or through said fiber.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 22, 2004
    Inventors: Joachim H Wendorff, Martin Steinhart
  • Oriented mesotubular and nantotubular non-wovens
    Publication number: 20040013819
    Abstract: The invention relates to oriented webs of meso- and nanotubes (hollow fibers) wherein the tubes or hollow fibers have an internal diameter of 10 nm to 50 &mgr;m and are preferentially oriented in one direction and to a process for their production.
    Type: Application
    Filed: April 28, 2003
    Publication date: January 22, 2004
    Inventors: Haoqing Hou, Johannes Averdung, Wolfgang Czado, Andreas Greiner, Joachim H. Wendorff
  • Method formaking shared structure with internally coated cavities
    Publication number: 20030098518
    Abstract: The present invention relates to a method for making shaped structures with internally coated cavities with an inside diameter in the nanometer to micrometer range and the shaped structure obtained thereby.
    Type: Application
    Filed: April 2, 2002
    Publication date: May 29, 2003
    Applicant: DE GUSSA AG
    Inventors: Johannes Averdung, Andreas Greiner, Joachim H. Wendorff, Haoquing Hou, Michael Bognitzki, Jung Zeng
  • Tubes having internal diameters in the nanometer range
    Publication number: 20030026985
    Abstract: Hollow fibers having an internal diameter from 1 nm to 100 nm can be produced by coating degradable materials with nondegradable materials and then degrading the degradable materials. The hollow fibers are useful in separation technology, catalysis, microelectronics, medical technology, materials technology or the clothing industry.
    Type: Application
    Filed: July 15, 2002
    Publication date: February 6, 2003
    Applicant: CREAVIS GESELLSCHAFT F. TECHN. U. INNOVATION MBH
    Inventors: Andreas Greiner, Joachim H. Wendorff, Haoqing Hou, Jun Zeng, Dierk Landwehr, Johannes Averdung
  • Use of organic compounds in the plastic columnar discotic liquid-crystal phase for transport of electric charges
    Patent number: 6099750
    Abstract: Use of compounds in the plastic columnar discotic liquid-crystal phase for transport of electric charges.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: August 8, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jurgen Simmerer, Karl-Heinz Etzbach, Karl Siemensmeyer, Wolfgang Paulus, Peter Schuhmacher, Birgit Glusen, Helmut Ringsdorf, Joachim H. Wendorff, Dietrich Haarer, Andreas Kettner