Patents by Inventor Gabriel von Lengyel-Konopi

Gabriel von Lengyel-Konopi 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).

  • Caffeine recovery from activated carbon
    Patent number: 5399688
    Abstract: The invention relates to a process for recovering caffeine from caffeine-loaded activated carbon and which is characterized in that the caffeine destroying activity of the activated carbon is reduced before or after loading with caffeine. The activated carbon can to that end be treated with acids, buffers, complexing agents, redox substances, caffeine and other xanthine derivatives. The caffeine recovery yield can be considerably increased by this means.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: March 21, 1995
    Assignee: Jacobs Suchard AG
    Inventors: Stefan Sipos, Gabriel von Lengyel-Konopi