Patents by Inventor Karl Seither

Karl Seither 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).

  • Manufacture of formaldehyde
    Patent number: 3932522
    Abstract: The manufacture of formaldehyde by oxidative dehydrogenation of crude methanol in the presence of a silver catalyst, the crude methanol being caused to impinge against baffle plates before the reaction takes place, the impurities which separate at the baffle plates being collected. The formaldehyde manufactured by the process of the invention is valuable as a disinfectant, tanning agent, reducing agent and intermediate in the manufacture of synthetic resins, adhesives and plastics.
    Type: Grant
    Filed: March 22, 1972
    Date of Patent: January 13, 1976
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Karl Seither, Guenther Matthias, Hans Diem, Oskar Hussy, Hans Haas