Patents by Inventor Albertus Smit

Albertus Smit 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).

  • Vesiculated polymer particles
    Publication number: 20060111474
    Abstract: Vesiculated polymer particles and a method of manufacture thereof, are suitable for the beneficial replacement of titanium dioxide pigments and extenders amongst others, and have improved opacity, whiteness, scrub resistance and water resistance due. The manufacturing process exhibits effective control of particle size and particle size distribution.
    Type: Application
    Filed: September 23, 2003
    Publication date: May 25, 2006
    Inventors: John Engelbrecht, Deon De Wet-Roos, Albertus Smit, Boyd Cooray