Patents by Inventor Ronald E. Dobson

Ronald E. Dobson 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).

  • Electric submersible pump band basket catcher
    Patent number: 8978752
    Abstract: A basket catcher for catching debris such as broken metal bands from an oil borehole casing as production tubing is withdrawn. The basket catcher has a collar that includes a series of spring-tensioned blades directed upwardly catch debris as the basket is withdrawn through the casing, preventing the debris from occluding the borehole.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 17, 2015
    Assignee: Central Fishing Tool, Inc.
    Inventors: Ronald E. Dobson, Gary J. Erickson
  • Electric Submersible Pump Band Basket Catcher
    Publication number: 20120024522
    Abstract: A basket catcher for catching debris such as broken metal bands from an oil borehole casing as production tubing is withdrawn. The basket catcher has a collar that includes a series of spring-tensioned blades directed upwardly catch debris as the basket is withdrawn through the casing, preventing the debris from occluding the borehole.
    Type: Application
    Filed: March 7, 2011
    Publication date: February 2, 2012
    Inventors: Ronald E. Dobson, Gary J. Erickson