Patents by Inventor Antonie Kees

Antonie Kees 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).

  • Sintered body and electric lamp
    Publication number: 20050156527
    Abstract: The sintered body of gastight translucent polycrystalline alumina contains oxidic magnesium, an oxidic second metal selected from erbium, holmium, thulium and dysprosium, and oxidic zirconium. The body can be used in a lamp vessel of an electric lamp.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 21, 2005
    Inventors: Franciscus Vries, Antonie Kees, Henricus Kunnen