Patents by Inventor Siegfried Make

Siegfried Make 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 preparing orotic acid and thioorotic acid
    Patent number: 4113950
    Abstract: A method for the preparation of orotic acid and thioorotic acid is described which includes the formation of carboxymethylene-hydantoin or -thiohydantoin and subsequent rearrangement and isolation of orotic acid and thioorotic acid, respectively.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: September 12, 1978
    Assignee: Diamalt Aktiengesellschaft
    Inventors: Paul Rambacher, Siegfried Make
  • Process for preparing orotic acid
    Patent number: 4062847
    Abstract: A method for the preparation of orotic acid and thioorotic acid is described which includes the formation of carboxymethylene-hydantoin or -thiohydantoin and subsequent rearrangement and isolation of orotic acid and thioorotic acid, respectively.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: December 13, 1977
    Assignee: Diamalt Aktiengesellschaft
    Inventors: Paul Rambacher, Siegfried Make