Patents by Inventor Pieter C. Scholten

Pieter C. Scholten 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 coating inorganic particles with condensating polymers
    Patent number: 4594271
    Abstract: A first stable suspension of at least one solid monomer, capable of being polymerized to a condensation polymer when heated, is formed in a first organic liquid inert during polymerization and containing a minor amount of a dispersing agent stable during said polymerization. A second stable suspension of finely divided inorganic particles in a second organic liquid inert during said polymerization and miscible with said first organic liquid, is formed and contains a minor amount of a dispersing agent. The first suspension is then added to the second suspension while stirring and heating the second suspension to the polymerization temperature of the monomer.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: June 10, 1986
    Assignees: U.S. Philips Corporation, North American Philips Corporation
    Inventors: Pieter C. Scholten, Fred W. Snyder, Howard Sorkin
  • Method of forming a luminescent layer on a carrier and low-pressure mercury vapor discharge lamp having a layer applied to a carrier by means of such a method
    Patent number: 4576833
    Abstract: A method of forming a luminescent layer on a glass carrier (such as the wall of a discharge vessel of a low-pressure mercury vapor discharge lamp) from a suspension of grains of a luminescent material and a quantity of binder in a suspension medium. According to the invention, the suspension medium preferably consists of water and the binder mainly comprises fibrous crystals of boehmite.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: March 18, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Pieter C. Scholten, Ronald K. Eijnthoven