For the Inventor, By the Inventor

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Calgary, Canada

Schlumberger Canada Limited

USPTO Granted Patents = 16

% Expired Patents = 12.5

CIPO Patents = 315

EPO Patents = 8

Trademarks = 7

Forward Citations = 232

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20 inventors (with patents filed for the assignee):

Chesley R Howell (6 out of 6 patents)

Marinus Hartman (3 out of 3 patents)

Fred Harmat (2 out of 5 patents)

4. John D Arnason (2 out of 2 patents)

5. Michael J Hampton (2 out of 2 patents)

6. Randy Saunders (2 out of 2 patents)

7. Murray Hartman (2 out of 2 patents)

8. Frank J Martin (2 out of 2 patents)

9. Jeffrey Charles Saponja (1 out of 22 patents)

10. Rob Hari (1 out of 4 patents)

11. Dave Kimery (1 out of 2 patents)

12. Tim Keith (1 out of 3 patents)

13. Shawn Deugo (1 out of 7 patents)

14. John D Jeter (1 out of 30 patents)

15. Alain Roig (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 11306575 - Releasably connectible downhole flow diverter for separating gases from liquids (2022-04-19),

2. 10399118 - Apparatus for treating a wellbore screen and method (2019-09-03),

3. 10323489 - Apparatus and methods for treating a wellbore screen (2019-06-18),

4. 5495238 - Induction watt-hour meter non-intrusive and concealed pulse initiator (1996-02-27),

5. 5399966 - Induction watt-hour meter rotary disc mounting and bearing system (1995-03-21),

6. 5364290 - Electric utility revenue meter polycarbonate base (1994-11-15),

7. 5196783 - Vent for electricity metering device (1993-03-23),

8. 5181166 - Securing mechanism for an electricity metering device (1993-01-19),

9. 5134544 - Cable retaining mechanism for an electricity metering device (1992-07-28),

10. 5088004 - Electricity metering device with cover (1992-02-11),

11. 5073877 - Signal pressure pulse generator (1991-12-17),

12. D299254 - Name plate (1989-01-03),

13. 4736644 - Adjustable gear support bracket (1988-04-12),

14. 4640985 - Snap-fitting transformer terminal cover (1987-02-03),

15. 4488152 - Register position sensing and controlling apparatus (1984-12-11),

Schlumberger Canada Limited is a prominent player in the oil and gas industry, specializing in providing technology and services for reservoir characterization, drilling, production, and processing. The company focuses on innovative solutions that enhance the efficiency and sustainability of energy extraction and management. With a strong presence in Calgary, Schlumberger Canada leverages advanced technologies and expertise to support the evolving needs of the energy sector, contributing to both local and global energy initiatives.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#70 in Calgary

#929 in Canada

#37,788 in the World

Calgary, Canada

Schlumberger Canada Limited

Forward Citations = 232

20 inventors:

Chesley R Howell (6 out of 6 patents)

Marinus Hartman (3 out of 3 patents)

Fred Harmat (2 out of 5 patents)

4. John D Arnason (2 out of 2 patents)

5. Michael J Hampton (2 out of 2 patents)

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