Patents by Inventor Marina Drobnic

Marina Drobnic 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).

  • Plunger lift controller and method
    Patent number: 6241014
    Abstract: A microprocessor-based controller for oil or gas wells using a plunger lift device is disclosed, which responds to variations in the well production and operation through a series of input signals derived from the well operation. The controller will automatically make corrections in the operation times and cycles to maximize the well performance and maintain environmental safety.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: June 5, 2001
    Assignee: Texas Electronic Resources, Inc.
    Inventors: Alfred Majek, Ian Dees, Marina Drobnic, Chris Fields