Patents by Inventor Gunther Siegemund

Gunther Siegemund 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).

  • 1,2,2,2-Tetrafluoroethyl ethers and process for preparing them
    Patent number: 3981927
    Abstract: 1,2,2,2-Tetrafluoroethyl ethers and process for preparing them; the compounds are useful inhalation anesthetics which are distinguished by shorter recovery times.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: September 21, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Siegemund, Roman Muschaweck
  • 2,2,2-Trifluoro-1-chloroethyl ethers and process for preparing them
    Patent number: 3980714
    Abstract: 2,2,2-TRIFLUORO-1-CHLOROETHYL ETHERS, USEFUL AS INHALATION ANESTHETICS, OF THE FORMULACF.sub.3 CHCl--OR,wherein R is alkyl, alkylphenyl, haloalkyl, or alkyloxyhaloalkyl, and methods for making and using the same.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: September 14, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Siegemund, Roman Muschaweck