Patents by Inventor Henri Valdman

Henri Valdman 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).

  • Method of producing temperature compensated reference diodes utilizing selective epitaxial growth
    Patent number: 3953254
    Abstract: Method of manufacturing temperature compensated zener-type semiconductor devices, made of a zener diode and two forward-biased diodes arranged in series, the three diodes being formed in a single monolithic unit on the two faces of a flat substrate, by an epitaxial technique.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: April 27, 1976
    Assignee: Thomson-CSF
    Inventor: Henri Valdman