Patents by Inventor Bart Van Hove

Bart Van Hove 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).

  • Patent number: 5620826
    Abstract: A method is provided for producing dry toner particles comprising the steps of:(i) dissolving at least one organic polymer (toner resin) in a solvent therefor to form a solution, said solvent being immiscible with water,(ii) dispersing said solution in an aqueous phase to form a dispersion of small droplets,(iii) removing the solvent by evaporation from the dispersed droplets and(iv) separating solid polymeric particles from the water of the aqueous phase, characterized in that:I. the dispersion of said small droplets is stabilized by the presence in the aqueous phase of a dissolved water-soluble (co)polymer, comprising both hydrophobic and hydrophilic moieties and thatII. after evaporation of said solvent said water-soluble (co)polymer is washed away.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: April 15, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Serge Tavernier, Frank Ruttens, Bart Van Hove, Gustaaf Piron, Theophiel Stuer