Patents by Inventor Adrian Oprea

Adrian Oprea 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).

  • Downhole sleeve tool
    Patent number: 11396792
    Abstract: A downhole sleeve tool is provided that includes a lower sub defining a bore and one or more sleeve ports therethrough. There is a piston valve movably positionable within the lower sub to selectively block communication between the bore and the one or more sleeve ports. There is an upper sub connectable to the lower sub and sharing another bore therewith. The upper sub has an inlet port, one or more communication ports, and an outlet port. There is an at least one cartridge assembly disposed in a cartridge bore formed in a wall of the upper sub.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: July 26, 2022
    Assignee: The WellBoss Company, Inc.
    Inventor: Adrian Oprea
  • Downhole Sleeve Tool
    Publication number: 20210355788
    Abstract: A downhole sleeve tool is provided that includes a lower sub defining a bore and one or more sleeve ports therethrough. There is a piston valve movably positionable within the lower sub to selectively block communication between the bore and the one or more sleeve ports. There is an upper sub connectable to the lower sub and sharing another bore therewith. The upper sub has an inlet port, one or more communication ports, and an outlet port. There is an at least one cartridge assembly disposed in a cartridge bore formed in a wall of the upper sub.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 18, 2021
    Inventor: Adrian Oprea
  • Downhole sleeve tool
    Patent number: 11111758
    Abstract: A downhole sleeve tool is provided that includes a lower sub defining a central bore and one or more sleeve ports therethrough. There is a piston valve slidably positionable within the lower sub to selectively block communication between the central bore and the one or more sleeve ports. There is an upper sub connectable to the lower sub and sharing another central bore therewith. The upper sub has an inlet port, one or more communication ports, and an outlet port. There is an at least one cartridge assembly disposed in a cartridge bore formed in a wall of the upper sub.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 7, 2021
    Inventor: Adrian Oprea
  • Downhole Sleeve Tool
    Publication number: 20200240241
    Abstract: A downhole sleeve tool is provided that includes a lower sub defining a central bore and one or more sleeve ports therethrough. There is a piston valve slidably positionable within the lower sub to selectively block communication between the central bore and the one or more sleeve ports. There is an upper sub connectable to the lower sub and sharing another central bore therewith. The upper sub has an inlet port, one or more communication ports, and an outlet port. There is an at least one cartridge assembly disposed in a cartridge bore formed in a wall of the upper sub.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 30, 2020
    Inventor: Adrian Oprea