Patents by Inventor Frieder Dobele

Frieder Dobele 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 for determination of degree of molecular dissociation in plasma using combined electrostatic measurement and emission spectroscopy
    Patent number: 5570175
    Abstract: A new method is described that allows determination of the degree of molecular dissociation based on continuous, radio frequency (rf) and microwave driven discharges based on electrostatic probe and emission spectroscopy measurements only. Using this method costly laser-induced fluorescence spectroscopy (LIF) can be avoided. The method described is particularly applicable to hydrogen plasmas characterized by non-thermal electron energy distribution functions which are of great practical importance. A compact combined fiber optic/electrostatic probe facilitating the required measurements is described.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: October 29, 1996
    Assignee: Ceram Optec Industries Inc.
    Inventors: Frieder Dobele, William G. Graham, Denis P. Dowling, Terence P. O'Brien, Volkhard Kornas, Thomas Morrow