Patents by Inventor Gunter Weis

Gunter Weis 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).

  • Abrasive body
    Patent number: 5287662
    Abstract: The invention relates to an abrasive body having a concave abrasive surface, whereby the abrasive body has a plurality of wings bent with the wing tip pointing in the moving direction. Each wing has a coolant duct in communication with a central opening in the abrasive body.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: February 22, 1994
    Assignee: D. Swarovski & Co.
    Inventors: Gunter Weis, Johann Pfister
  • Sintered abrasive material
    Patent number: 4735655
    Abstract: The invention provides a flexible, deformable sintered abrasive material made of a bronze alloy with particulate abrasive grain. The alloy consists essentially of3 to 30 wt. % of Ag,0 to 1 wt. % of Si,0.05 to 3 wt. % of Ge, Sn, Pb, Zn and/or Cd,the remainder being copper. The sintered abrasive material is best suited for abrasive material carriers with concave or convex surfaces or for winding around grinding drums.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: April 5, 1988
    Assignee: D. Swarovski & Co.
    Inventors: Gunter Weis, Albert Cuel
  • Intermediates for preparation of 2,2,3-endotrimethyl-7-anti-amino-norbornanes
    Patent number: 3988362
    Abstract: The present disclosure relates to intermediates 2,2,3-endo-trimethyl-7-anti-amino-norbornanes and N-substituted analogs thereof. In particular the aforesaid compounds have a conventional protective group on the amino moiety and also hydroxymethyl or p-toluenesulfonyl oxymethyl groups in the 3-position.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: October 26, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Karl Bernauer, Janos Borgulya, Marc Montavon, Hermann Bretschneider, Kraft Hohenlohe-Oehringen, Gunter Weis