Patents by Inventor JOHN STOLT

JOHN STOLT 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).

  • SINKER BAR
    Publication number: 20180334892
    Abstract: The sinker bar can have at least one pin with a shoulder that is at least 1.600 inches from the end of the pin to provide greater stability and easy make-up. The modified polished rod pin is capable of mating with a polished rod coupling.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 22, 2018
    Applicant: American Sinker Bars, LLC
    Inventors: John Stolt, Jeff De La Paz, Johnny Fayo
  • Sinker bar
    Patent number: 10024118
    Abstract: The sinker bar can have at least one pin with a shoulder that is at least 1.600 inches from the end of the pin to provide greater stability and easy make-up. The modified polished rod pin is capable of mating with a polished rod coupling.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 17, 2018
    Assignee: American Sinker Bars, LLC
    Inventors: John Stolt, Jeff De La Paz, Johnny Fayo
  • SINKER BAR
    Publication number: 20160369574
    Abstract: The sinker bar can have at least one pin with a shoulder that is at least 1.600 inches from the end of the pin to provide greater stability and easy make-up. The modified polished rod pin is capable of mating with a polished rod coupling.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Applicant: AMERICAN SINKER BARS
    Inventors: JOHN STOLT, JEFF DE LA PAZ, JOHNNY FAYO