Patents by Inventor Henricus A. C. Tijssen

Henricus A. C. Tijssen 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).

  • Counter current crystallization process
    Patent number: 4338109
    Abstract: Continuous counter current multistage process for freeze concentration, iuding a step whereby the ice crystals in the first stage are separated from the mother liquor in a final separation step, the ice crystals being rejected and the mother liquor from the last stage recovered as a product, whereby in a stage of said process ice crystals are introduced, said ice crystals having a larger medium size than the crystals in said stage formed without said introduction of said ice crystals.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: July 6, 1982
    Assignee: Douwe Egberts Koninklijke Tabaksfabriek-Koffiebranderijen-Theehandel B.V.
    Inventors: Henricus A. C. Tijssen, Bernardus G. M. van der Malen