Patents by Inventor Ivan V. Prein

Ivan V. Prein 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).

  • Field emission devices with current stabilizer(s)
    Patent number: 6262530
    Abstract: A field emission device includes a non-stabilized special vector electron source having a field emission edge emitter cathode (102), a stabilizing anode (103) and a current stabilizer (104) in electrical circuit of the stabilizing anode (103), a collecting anode (105) and at least one control electrode (106) for controlling emission flow of electrons from the vector electron source to the collecting anode (105).
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: July 17, 2001
    Inventor: Ivan V. Prein