Patent Assignment
Reel/Frame 048052/0720
Assignment of Assignor's Interest
Recorded: 2019-01-17
Pages: 7
Assignors
XIAO, XIAOJUN
Executed: 2018-08-02
WHALEN, DAVE
Executed: 2018-08-06
VAN ZELM, JOHN-PETER
Executed: 2018-08-02
MCRORY, JOHN GODFREY
Executed: 2018-08-02
Assignee
XACT DOWNHOLE TELEMETRY INC.
906 55TH AVENUE N.E., CALGARY, ALBERTA, T2E 6Y4, CANADA
Covered Property
(1)
Method and Apparatus for Pre-Loading a Piezoelectric Transducer for Downhole Acoustic Communication
Application:
16/316,848 →
Publication:
US 2019/0301280
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 20, 2019
From: XACT DOWNHOLE TELEMETRY INC.
To: BAKER HUGHES CANADA COMPANY
Reel/Frame 050445/0948 →
Assignment of Assignor's Interest
Sep 20, 2019
From: BAKER HUGHES CANADA COMPANY
To: BAKER HUGHES OILFIELD OPERATIONS LLC
Reel/Frame 050446/0081 →
Assignment of Assignor's Interest
Dec 23, 2020
From: XACT DOWNHOLE TELEMETRY LLC
To: BAKER HUGHES OILFIELD OPERATIONS LLC
Reel/Frame 054735/0712 →