Patents by Inventor Bjorn Vassoy

Bjorn Vassoy 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).

  • Silicon oxide slurry and method for producing such slurry
    Patent number: 7393407
    Abstract: The present invention relates to a slurry containing water, amorphous silica panicles having a particle size less than 1 micron and silica flour with a particle size between 2-200 microns. In order to stablize the slurry, the slurry contains a polysaccharide. The invention further relates to a method for the production of a slurry containing water, amorphous silica having a particle size below 1 micron, and silica flour with a particle size between 2-200 microns, where a polysaccharide is added to a slurry of water and amorphous silica, whereafter the silica flour is mixed into the slurry of amorphous silica.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: July 1, 2008
    Assignee: Elkem ASA
    Inventors: Eldar O Dingsoyr, Magne Dastol, Cor Oldenziel, Bjorn Vassoy
  • Silicon oxide slurry and method for producing such slurry
    Publication number: 20050172864
    Abstract: The present invention relates to a slurry containing water, amorphous silica particles having a particle size less than 1 ?m and silica flour with a particle size between 2-200 ?m. In order to stabilize the slurry, the slurry contains a polysaccharide. The invention further relates to a method for the production of a slurry containing water, amorphous silica having a particle size below 1 ?m, and silica flour with a particle size between 2-200 ?m, where a polysaccharide is added to a slurry of water and amorphous silica, whereafter the silica flour is mixed into the slurry of amorphous silica.
    Type: Application
    Filed: April 24, 2003
    Publication date: August 11, 2005
    Applicant: Elkem ASA
    Inventors: Eldar Dingsoyr, Magne Dastol, Cor Oldenziel, Bjorn Vassoy