Patents by Inventor David Agab

David Agab 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).

  • Storability of molten cyclohexanone oxime
    Patent number: 4931592
    Abstract: The storability of molten cyclohexanone oxime containing 0.5-15% by weight of cyclohexanone and 1-8% by weight of aqueous ammonium bisulfate solution is improved by washing the molten cyclohexanone oxime with a 10-42% strength by weight aqueous ammonium sulfate solution and maintaining a pH of 4.5-5.8.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: June 5, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Hugo Fuchs, David Agab, Gerald Neubauer, Josef Ritz