Patent Assignment
Reel/Frame 008829/0698
Assignment of Assignor's Interest
Recorded: 1997-12-02
Pages: 2
Assignor
BOB FOURNET COMPANY, THE
Executed: 1997-10-30
Assignee
COMPUTALOG LTD.
2000, 530 EIGHTH AVE., SW, CALGARY, ALBERTA, CANADA
Covered Properties
(4)
Gyroscopic Directional Surveying Instrument
Patent:
4,302,886 →
Application:
06/088,959 →
Mud Pulse Pressure Signal Generator
Patent:
5,103,430 →
Application:
07/607,678 →
Self-Adjusting Centralizer
Patent:
5,348,091 →
Application:
08/107,092 →
Switch Actuator and Flow Restrictor Pilot Valve Assembly for Measurement While Drilling Tools
Patent:
5,660,238 →
Application:
08/585,799 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Aug 26, 1991
From: JETER, JOHN D.; EARL, LEON M.; LANDRY, MERLIN P.
To: BOB FOURNET COMPANY, THE A CORPORATION OF LA
Reel/Frame 005822/0188 →
Assignment of Assignor's Interest
Aug 11, 1994
From: TCHAKAROV, BORIS; EARL, LEON
To: BOB FOURNET COMPANY, THE
Reel/Frame 007097/0434 →
Assignment of Assignor's Interest
Apr 21, 1997
From: EARL, LEON M.; TCHAKAROV, BORISLAV J.
To: BOB FOURNET COMPANY, THE
Reel/Frame 008471/0004 →
Change of Name
Jul 1, 2005
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017275/0188 →
Change of Name
Aug 3, 2005
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
To: PRECISION ENERGY SERVICES, LTD.
Reel/Frame 016345/0078 →
Change of Name
Feb 7, 2006
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017230/0980 →
Assignment of Assignor's Interest
Apr 21, 2006
From: PRECISION ENERGY SERVICES LTD.
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 017507/0031 →
Assignment of Assignor's Interest
Apr 26, 2006
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 017527/0191 →