Patents by Inventor John Sobolewski

John Sobolewski 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).

  • Tool assembly with collet and shiftable valve and process for directing fluid flow in a wellbore
    Patent number: 10947815
    Abstract: Various embodiments of a tool assembly for completion of wellbores and processes of using the tool assemblies are provided. In various example embodiments a tethered receptacle in receipt of a plug member is releasably coupled to a collet. The tool assembly comprises one or more shiftable valves. In a process for controlling fluid flow in a wellbore string, the collet is released from the receptacle. Engagement of the collet with a shiftable valve causes the valve to shift from a port closed to a port open position, and to plug the central bore of a wellbore string with the plug member.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 16, 2021
    Assignee: Advanced Completions Asset Corporation
    Inventors: Jianjun Wang, John Sobolewski
  • TOOL ASSEMBLY WITH COLLET AND SHIFTABLE VALVE AND PROCESS FOR DIRECTING FLUID FLOW IN A WELLBORE
    Publication number: 20180320479
    Abstract: Various embodiments of a tool assembly for completion of wellbores and processes of using the tool assemblies are provided. In various example embodiments a tethered receptacle in receipt of a plug member is releasably coupled to a collet. The tool assembly comprises one or more shiftable valves. In a process for controlling fluid flow in a wellbore string, the collet is released from the receptacle. Engagement of the collet with a shiftable valve causes the valve to shift from a port closed to a port open position, and to plug the central bore of a wellbore string with the plug member.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 8, 2018
    Inventors: Jianjun Wang, John Sobolewski