Patents by Inventor Rudolph Kodras

Rudolph Kodras 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).

  • Input circuit for an electrical energy meter
    Patent number: 5053697
    Abstract: The invention relates to an input circuit for an electrical energy meter, which circuit has a current path and a voltage path, the current path being associated with a mutual conductance transformer. In order to compensate for the differentiating function of the transformer, but without introduicng interference signals, the current path includes an active filter connected as an integrator and provided with a coupling capacitance suitable for blocking low frequency signals.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: October 1, 1991
    Assignee: Schlumberger Industries
    Inventors: Alain Carnel, Rene Gourc, Rudolph Kodras
  • Process for liquid-liquid sorbent extraction
    Patent number: 4215994
    Abstract: This invention relates to a process for extraction in which a sorbent wetted with one of two immiscible fluids exchanges the first fluid (nonpolar) for the second fluid (polar) and whereupon the first fluid extracts the desired substance(s) from the second fluid.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: August 5, 1980
    Inventor: Rudolph Kodras