Patent Assignment
Reel/Frame 049513/0022
Assignment of Assignor's Interest
Recorded: 2019-06-19
Pages: 6
Assignor
XACT DOWNHOLE TELEMETRY INC.
Executed: 2019-05-30
Assignee
BAKER HUGHES CANADA COMPANY
1000, 401 9TH AVENUE, SW CALGARY, AB, T2P3C5, CANADA
Covered Properties
(26)
Apparatus for Receiving Downhole Acoustic Signals
Circuit to Mitigate Transformer Shorted Turn
Acoustic telemetry system optimization
Application:
11/786,521 →
Publication:
US 2007/0257809
Dynamic Efficiency Optimization of Piezoelectric Actuator
Telemetry Transmitter Optimization via Inferred Measured Depth
Telemetry Transmitter Optimization Using Time Domain Reflectometry
Telemetry Wave Detection Apparatus and Method
Drill String Telemetry Methods and Apparatus
Acoustic Isolator
Parallel-Path Acoustic Telemetry Isolation System and Method
System and Method for Accurate Wellbore Placement
Acoustic Telemetry Stacked-Ring Wave Delay Isolator System and Method
Telemetry Transmitter Optimization Using Time Domain Reflectometry
Telemetry Wave Detection Apparatus and Method
Tapered Thread Em Gap Sub Self-Aligning Means and Method
Downhole Low Rate Linear Repeater Relay Network Timing System and Method
Network Telemetry System and Method
Application:
14/215,617 →
Publication:
US 2014/0266769
Robust Telemetry Repeater Network System and Method
Acoustic Telemetry Stacked-Ring Wave Delay Isolator System and Method
Acoustic Transmitter for Transmitting a Signal Through a Downhole Medium
Range Positioning Tool for Use Within a Casing or Liner String
Application:
14/771,777 →
Publication:
US 2016/0017704
Acoustic Receiver for Use on a Drill String
Downhole Low Rate Linear Repeater Relay Network Timing System and Method
Method and System for Controlling Voltage Applied Across a Piezoelectric Stack of a Downhole Acoustic Transmitter
Downhole Low Rate Linear Repeater Relay Network Timing System and Method
Method and Apparatus for Pre-Loading a Piezoelectric Transducer for Downhole Acoustic Communication
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 1, 2003
From: CAMWELL, PAUL L.; SIEMENS, WENDALL L.
To: EXTREME ENGINEERING LTD.
Reel/Frame 013926/0729 →
Assignment of Assignor's Interest
May 16, 2003
From: DOPF, ANTHONY R.; CAMWELL, PAUL L.; SIEMENS, WENDALL L.; LOGAN, DEREK W
To: EXTREME ENGINEERING LTD.
Reel/Frame 014069/0593 →
Assignment of Assignor's Interest
Aug 31, 2004
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 015751/0444 →
Assignment of Assignor's Interest
Aug 31, 2004
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 015751/0484 →
Assignment of Assignor's Interest
Jul 20, 2007
From: CAMWELL, PAUL L.; HILDEBRANDT, EDWIN I.; SENDYK, ANDRZEJ M.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 019583/0350 →
Assignment of Assignor's Interest
Jul 20, 2007
From: CAMWELL, PAUL L.; NEFF, JAMES M.
To: XACT DOWNHOLE TELEMETRY INC.; EXTREME ENGINEERING LTD.
Reel/Frame 019585/0606 →
Assignment of Assignor's Interest
Jul 20, 2007
From: CAMWELL, PAUL L.; SIEMENS, WENDALL L.; LOGAN, DEREK W.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 019585/0577 →
Assignment of Assignor's Interest
Jul 20, 2007
From: CAMWELL, PAUL L.; NEFF, JAMES M.; DRUMHELLER, DOUGLAS S.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 019585/0569 →
Assignment of Assignor's Interest
Aug 2, 2007
From: CAMWELL, PAUL L.; NEFF, JAMES M.
To: XACT DOWNHOLE TELEMETRY INC.; EXTREME ENGINEERING LTD.
Reel/Frame 019638/0467 →
Assignment of Assignor's Interest
Jun 20, 2008
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 021130/0434 →
Assignment of Assignor's Interest
Jun 20, 2008
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 021130/0440 →
Assignment of Assignor's Interest
Jun 27, 2008
From: CAMWELL, PAUL L.; NEFF, JAMES M.; LOGAN, DEREK W.
To: EXTREME ENGINEERING LTD.
Reel/Frame 021189/0286 →
Assignment of Assignor's Interest
Jul 9, 2008
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 021257/0948 →
Corrective Assignment to Correct the Appl. No. That the Assignment Was Recorded Against from 11/768,645 to 11/786,645 and to Update the Postal Address of Assignee Previously Recorded on Reel 021130 Frame 0440. Assignor(S) Hereby Confirms the Assignment.
Oct 29, 2008
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 021755/0494 →
Assignment of Assignor's Interest
Feb 4, 2010
From: CAMWELL, PAUL L.; WHALEN, DAVID D.; DRUMHELLER, DOUGLAS S.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 023899/0818 →
Assignment of Assignor's Interest
Feb 23, 2010
From: CAMWELL, PAUL L.; WHALEN, DAVID D., `; MCRORY, JOHN G.; NEFF, JAMES M.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 023975/0306 →
Assignment of Assignor's Interest
Feb 26, 2010
From: CAMWELL, PAUL L.; WHALEN, DAVID D.; DRUMHELLER, DOUGLAS S.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 023996/0562 →
Assignment of Assignor's Interest
Mar 10, 2010
From: DRUMHELLER, DOUGLAS S.; CAMWELL, PAUL L.; DOPF, ANTHONY R.; LOGAN, DEREK W.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 024061/0397 →
Assignment of Assignor's Interest
Oct 27, 2010
From: CAMWELL, PAUL L.; NEFF, JAMES M.
To: XACT DOWNHOLE TELEMETRY, INC.; EXTREME ENGINEERING LTD.
Reel/Frame 025206/0166 →
Assignment of Assignor's Interest
Oct 28, 2010
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 025213/0916 →
Assignment of Assignor's Interest
Apr 11, 2011
From: CAMWELL, PAUL L.; NEFF, JAMES M.; DRUMHELLER, DOUGLAS S.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 026105/0894 →
Assignment of Assignor's Interest
Apr 14, 2011
From: CAMWELL, PAUL L.; WHALEN, DAVID D.
To: XACT DOWNHOLE TELEMETRY, INC., A DELAWARE CORPORATION
Reel/Frame 026128/0711 →
Assignment of Assignor's Interest
Jan 6, 2014
From: VAN ZELM, JOHN-PETER
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 031899/0155 →
Assignment of Assignor's Interest
Jul 10, 2014
From: VAN ZELM, JOHN-PETER; MARTINEAU, CELINE J.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 033286/0456 →
Assignment of Assignor's Interest
Jul 10, 2014
From: JOHN-PETER, VAN ZELM
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 033286/0386 →