For the Inventor, By the Inventor

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Edmonton, Canada

Dreco Energy Services Ltd.

USPTO Granted Patents = 3

CIPO Patents = 2

EPO Patents = 2

Trademarks = 2

Forward Citations = 132

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5 inventors (with patents filed for the assignee):

Nicholas Ryan Marchand (1 out of 31 patents)

Van Hy Nguyen (1 out of 4 patents)

Randy Steven Stoik (1 out of 6 patents)

4. Jonathan Ryan Prill (1 out of 25 patents)

5. Ronald S Sorokan (1 out of 4 patents)

6. Ralph William Graeme Johns (3 patents)

7. Mark Louis Voghell (1 patent)

8. Mark Louis Philip Voghell (0 patent)

3 patents: Sort by Forward Citations

1. 8646976 - Auto-centering structural bearing (2014-02-11),

2. 8474527 - Mechanism for providing controllable angular orientation while transmitting torsional load (2013-07-02),

3. 6220807 - Tubular handling system (2001-04-24),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#95 in Edmonton

#4,250 in Canada

Edmonton, Canada

Dreco Energy Services Ltd.

Forward Citations = 132

5 inventors:

Nicholas Ryan Marchand (1 out of 31 patents)

Van Hy Nguyen (1 out of 4 patents)

Randy Steven Stoik (1 out of 6 patents)

4. Jonathan Ryan Prill (1 out of 25 patents)

5. Ronald S Sorokan (1 out of 4 patents)

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