Patents by Inventor Josef P. Van Dalen

Josef P. Van Dalen 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 refining glyceride oil using precipitated silica
    Patent number: 5264597
    Abstract: The invention relates to a process for refining glyceride oil comprising the steps of contacting the oil with amorphous silica, wherein said silica is selected from the group of precipitated amorphous silicas having a surface area of at least 400 m.sup.2 /g in pores with a diameter from at least 2 nm. Preferably said precipitated amorphous silicas have a pore volume in the range of about 1.3 to 2.5 ml/g, in pores having a pore diameter in the range of 3.6 to 1000 nm.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: November 23, 1993
    Assignee: Van den Bergh Foods, Co., Division of Conopco, Inc.
    Inventors: Josef P. Van Dalen, Jannes G. Lammers, Derek Aldcroft
  • Process for refining glyceride oil using silica hydrogel
    Patent number: 5069829
    Abstract: The invention relates to a process for refining glyceride oil comprising the steps of:i) contacting the glyceride oil with a silica hydrogel;ii) removing water from the mixture of glyceride oil and silica hydrogel; andiii) separating the silica hydrogel from the mixture.Preferably water is removed to such an extent that the final water content of the mixture of glyceride oil and silica hydrogel is less than 0.2% wt., preferably 0.1% wt., or even less than 0.1% wt.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: December 3, 1991
    Assignee: Van den Bergh Foods Co., Division of Conopco, Inc.
    Inventors: Josef P. Van Dalen, Leo Brunia