Patents by Inventor Michael Hirschhaeuser

Michael Hirschhaeuser 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 and process for filling large containers of different sizes and shapes
    Patent number: 6860301
    Abstract: An apparatus for filling containers, said apparatus comprising a feed nozzle which may be placed over the feed orifice of the container, the feed nozzle being so constructed that the solids may be introduced under pressure and the container being surrounded by a cage, as well as a process for filling containers, in particular with finely divided solids having a high air content by arranging an air-permeable large container in an apparatus according to the invention, air-tight connection of the large container to the feed nozzle, filling of the container under pressure, removal of the filled container and container with air-permeable plies.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: March 1, 2005
    Assignee: DeGussa AG
    Inventors: Roland Schaffer, Johannes Andreas Joze Middelman, Gerd Theodor Brand, Thomas Riedemann, Frank Dieter Hünig, Hans-Jürgen Strempel, Hans-Joachim Seydel, Michael Hirschhäuser
  • Pharmaceutical preprations containing pyrogenic silicon dioxide
    Publication number: 20020197311
    Abstract: Pharmaceutical and cosmetic preparations containing pyrogenic silicon dioxide with a tamped density of 80-250 g/l. Preparations and compositions as solid, semisolid and liquid forms. Products, such as cosmetics, and methods of treatment using such compositions.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 26, 2002
    Applicant: Degussa AG
    Inventors: Steffen Hasenzahl, Margarete Drechsler, Michael Hirschhaeuser