Patents by Inventor Jelle Van Der Spoel

Jelle Van Der Spoel 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).

  • Method and device for purifying protein containing waste water
    Patent number: 6251277
    Abstract: The invention relates to a method for purifying protein containing waste water, In which a) a first insoluble material is caused to form in the waste water, b) the mixture obtained in step a) is separated to form pre-purified waste water, c) the pre-purified waste water is treated with aerobic microorganisms and d) the mixture obtained in step c) is separated to form finely purified waste water, and in which step b) and step d) are carried out in the same device. Preferably, steps b) and d) are alternately carried out in the same device.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: June 26, 2001
    Assignee: Friesland Brands B.V.
    Inventor: Jelle Van Der Spoel