Patent Assignment
Reel/Frame 054735/0712
Assignment of Assignor's Interest
Recorded: 2020-12-23
Pages: 7
Assignor
XACT DOWNHOLE TELEMETRY LLC
Executed: 2020-12-18
Assignee
BAKER HUGHES OILFIELD OPERATIONS LLC
17021 ALDINE WESTFIELD RD, HOUSTON, TEXAS, 77073
Covered Properties
(35)
Apparatus for Receiving Downhole Acoustic Signals
Circuit to Mitigate Transformer Shorted Turn
Acoustic isolator
Application:
11/606,818 →
Publication:
US 2007/0153629
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
Downhole Timing Recovery and Signal Detection
Application:
12/618,906 →
Publication:
US 2010/0135117
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
Air Hammer Optimization Using Acoustic Telemetry
Application:
12/815,074 →
Publication:
US 2011/0141852
Telemetry Transmitter Optimization Using Time Domain Reflectometry
Apparatus and Method for Acoustic Telemetry Measurement of Well Bore Formation Debris Accumulation
Application:
12/887,334 →
Publication:
US 2011/0069583
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
Air Hammer Optimization Using Acoustic Telemetry
Application:
14/144,333 →
Publication:
US 2014/0112100
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
Robust Telemetry Repeater Network System and Method
Method and Apparatus for Pre-Loading a Piezoelectric Transducer for Downhole Acoustic Communication
Application:
16/316,848 →
Publication:
US 2019/0301280
Method and Apparatus for Pre-Loading a Piezoelectric Transducer for Downhole Acoustic Communication
Method and Apparatus for Pre-Loading a Piezoelectric Transducer for Downhole Acoustic Communication
Serial Hybrid Downhole Telemetry Networks
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.; DRUMHELLER, DOUGLAS S.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 019585/0569 →
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.
To: XACT DOWNHOLE TELEMETRY INC.; EXTREME ENGINEERING LTD.
Reel/Frame 019585/0606 →
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
Apr 7, 2008
From: DRUMHELLER, DOUGLAS S.; CAMWELL, PAUL L; DOPF, ANTHONY R.; LOGAN, DEREK W.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 020788/0597 →
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 20, 2008
From: EXTREME ENGINEERING LTD.
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 021130/0434 →
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
Nov 16, 2009
From: MCRORY, JOHN G
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 023520/0926 →
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
Jun 30, 2010
From: CAMWELL, PAUL L.; NEFF, JAMES M.
To: XACT DOWNHOLE TELEMETRY, INC.
Reel/Frame 024619/0338 →
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
Nov 3, 2010
From: CAMWELL, PAUL; NEFF, JAMES
To: XACT DOWNHOLE TELEMETRY INC.
Reel/Frame 025244/0424 →
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 →