Patents by Inventor Jochen Wilkens

Jochen Wilkens 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 separating caffeine from caffeine-loaded active carbon
    Patent number: 4673743
    Abstract: The invention relates to a process for separating caffeine from caffeine-loaded active carbon in which a circulated inert gas sweeping stream is passed rectangularly through the stream of active carbon at a temperature of 350.degree. to 450.degree. C., and the caffeine desorbed from the active carbon is precipitated in the form of solid particles by quenching the inert gas sweeping stream, and separated.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: June 16, 1987
    Assignee: Hag GF Aktiengesellschaft
    Inventor: Jochen Wilkens