Patents by Inventor Alexandre Eroujenets

Alexandre Eroujenets 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).

  • Hydraulic pumping system
    Patent number: 11608824
    Abstract: Pumps are provided, more particularly piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps. The pumps are suitable for pumping of oil from an oil well or for pumping other liquids such as ground water, subterranean liquids, brackish water, sea water, waste water, cooling water, gas, coolants, and the like.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 21, 2023
    Inventors: Richard Frederick McNichol, Alexandre Eroujenets
  • HYDRAULIC PUMPING SYSTEM
    Publication number: 20200224652
    Abstract: Pumps are provided, more particularly piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps. The pumps are suitable for pumping of oil from an oil well or for pumping other liquids such as ground water, subterranean liquids, brackish water, sea water, waste water, cooling water, gas, coolants, and the like.
    Type: Application
    Filed: July 18, 2018
    Publication date: July 16, 2020
    Inventors: Richard Frederick MCNICHOL, Alexandre EROUJENETS
  • Coaxial pumping apparatus with internal power fluid column
    Patent number: 9115710
    Abstract: The present application relates generally to pumps, and more particularly to piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of operating piston type pumps.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Inventors: Richard F. McNichol, Alexandre Eroujenets, Norm Fisher, Lucas van den Berg, Gordon Bryce