Patents by Inventor Denver C. LEE

Denver C. LEE 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).

  • Dual mast rig with independently adjustable platforms
    Patent number: 11280137
    Abstract: A system for performing a subterranean operation, where the system may include a substructure of a rig configured to move from a first position to a second position, a first platform overlying and coupled to the substructure, a second platform overlying and coupled to the substructure, with the first platform configured to move independently from and relative to the substructure and the second platform, and with the second platform configured to move independently from and relative to the substructure and the first platform.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: March 22, 2022
    Assignee: Nabors Drilling Technologies USA, Inc.
    Inventors: Padira P. Reddy, Denver C. Lee
  • MOVEABLE BOP TRANSPORT SKID
    Publication number: 20210032959
    Abstract: A system for conducting a subterranean operation where the system can include a blowout preventer (BOP) stack, a chassis coupled to the BOP stack, and one or more transport devices coupled to the chassis and configured to transport the chassis and the BOP stack from a first location to a second location.
    Type: Application
    Filed: July 1, 2020
    Publication date: February 4, 2021
    Inventors: Padira P. REDDY, Denver C. LEE, Ralph D. SHAMAS, JR., Sean M. BAILEY
  • DUAL MAST RIG WITH INDEPENDENTLY ADJUSTABLE PLATFORMS
    Publication number: 20200392796
    Abstract: A system for performing a subterranean operation, where the system may include a substructure of a rig configured to move from a first position to a second position, a first platform overlying and coupled to the substructure, a second platform overlying and coupled to the substructure, with the first platform configured to move independently from and relative to the substructure and the second platform, and with the second platform configured to move independently from and relative to the substructure and the first platform.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 17, 2020
    Inventors: Padira P. REDDY, Denver C. LEE