Patents by Inventor Beschke Helmut

Beschke Helmut 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).

  • Process for obtaining 3-cyanopyridine
    Patent number: 4482719
    Abstract: The gaseous mixture resulting from the catalytic reaction of 3-methylpyridine with ammonia and oxygen is treated with water to recover 3-cyanopyridine. The treatment takes place in two steps. In the first step there is used a temperature of about 30.degree. to 60.degree. C. and in the second step at a temperature about 10.degree. to 30.degree. C. lower than in the first step.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: November 13, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Beschke Helmut, Dahm Ludwig, Friedrich Heinz