Patents by Inventor Hendrikus Willemina Evers

Hendrikus Willemina Evers 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).

  • Electric discharge tube, comprising a highly loaded anode
    Patent number: RE29390
    Abstract: An electronic tube comprises a anode assembled of two inner anode members and an outer anode member. Surface portions of the inner member which are placed against corresponding surface portions of the outer member have a coefficient of thermal radiation of more than 60% of that of the .[.outer member.]. .Iadd.black body .Iaddend.for a temperature of about 500.degree. C.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: September 6, 1977
    Assignee: U.S. Philips Corporation
    Inventor: Hendrikus Willemina Evers