Patents by Inventor Heinrich Sperber

Heinrich Sperber 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: 4072717
    Abstract: Formaldehyde is prepared by oxidative dehydrogenation of methanol in the presence of a silver catalyst, specific amounts of steam and specific amounts of an off-gas, of a specific composition, taken from the manufacture of formaldehyde. The reaction is started at a lower throughput of methanol and at a lower temperature. The formaldehyde obtainable by the process is a disinfectant, tanning agent and reducing agent, and a starting material for the manufacture of synthetic resins, adhesives and plastics.
    Type: Grant
    Filed: August 22, 1975
    Date of Patent: February 7, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Halbritter, Wolfgang Muehlthaler, Heinrich Sperber, Hans Diem, Christian Dudeck, Gunter Lehmann
  • Production of formaldehyde
    Patent number: 4010208
    Abstract: The production of formaldehyde by oxidizing dehydrogenation of methanol in the presence of a silver catalyst which consists of three or more layers each of specific weight and particles of specific particle size and having a specific total layer thickness. Formaldehyde prepared according to the process of the invention is a disinfectant, tanning agent, reducing agent and valuable starting material for the production of synthetic resins, adhesives and plastics.
    Type: Grant
    Filed: April 25, 1974
    Date of Patent: March 1, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Albrecht Aicher, Hans Haas, Heinrich Sperber, Hans Diem, Guenther Matthias, Gunter Lehmann