Patents by Inventor Rob Coldenhoff

Rob Coldenhoff 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).

  • Separation of biomass from lactic-acid containing fermentation products by means of flocculation
    Patent number: 7244596
    Abstract: The present invention is in the field of the preparation of lactic acid by means of fermentation, more particularly it is directed to processes to separate the biomass from the lactic acid-containing fermentation product by means of flocculation. We have found that for the separation of biomass from lactate and lactic acid-containing fermentation broth the following process is very convenient and suitable; a) Subjecting the fermentation broth to an alkalifying step, b) adding one or more flocculants, and c) separating the biomass flocs from the lactate and lactic acid-containing fermentation broth. With this process even bacteria-based fermentation broths can be suitably handled efficiently and economically.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: July 17, 2007
    Assignee: Purac Biochem B.V.
    Inventors: Peter Johannes Marie Baets, Rob Coldenhoff