Patents by Inventor Gernot Schock

Gernot Schock 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).

  • Palladium based alloy for dental applications
    Patent number: 5298218
    Abstract: Palladium based dental alloys do not show unaesthetic discolorations after ceramic firing if said alloys contain 66-85% by weight palladium, 1-20% by weight gold; 0-4% by weight silver; 0-4% by weight of at least one of platinum, iron and/or cobalt; 0.5-7% by weight of each of gallium, tin and indium, whereby the amount of said components total 9-14% by weight; 0-2% by weight germanium and/or zinc; and 0-1% by weight iridium, ruthenium and/or rhenium.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: March 29, 1994
    Assignee: Degussa Aktiengesellschaft
    Inventors: Werner Groll, Doris Hathaway, Bernd Kempf, Gernot Schock
  • Method of producing alloyed powders for dental amalgams
    Patent number: 4859412
    Abstract: An economical alloyed powder for dental amalgams exhibiting good working properties is obtained from pressed and sintered molded bodies by mechanical comminution. The formed body is produced by mixing and pressing powders of elemental silver, copper and tin with a subsequent sintering between 150.degree. C. and the solidus temperature of the alloy being formed. The sintering is performed until a homogeneous distribution of the tin has been achieved in the silver and copper particles.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: August 22, 1989
    Inventors: Werner Groll, Doris Hathaway, Gernot Schock
  • Use of silver-free palladium alloys for firing on dental ceramics
    Patent number: 4681735
    Abstract: Economical but readily workable palladium alloys for baking on dental ceramics consist of 60 to 80% palladium, 0 to 8% gold, 0 to 5% platinum, 0 to 1% ruthenium and/or rhenium, 2 to 20% copper, 1 to 12% tin and/or indium, 0.2 to 5% of at least one of the elements tungsten, molybdenum, niobium, and tantalum, and 0 to 15% cobalt, with the proviso that the sum of tin and indium must be between 5 and 14%.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: July 21, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Werner Groll, Gernot Schock, Doris Hathaway, Rudolf Wagner