Patent Assignment
Reel/Frame 043164/0629
Assignment of Assignor's Interest
Recorded: 2017-07-12
Pages: 3
Assignor
ROHAN, JOHN ANTON, SR
Executed: 2015-01-07
Assignee
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 ST JAMES PL, HOUSTON, TEXAS, 77056
Covered Property
(1)
Methods and Apparatus for Centrifuge Fluid Production and Measurement Using Resistive Cells
Application:
15/542,992 →
Publication:
US 2018/0010991
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 1, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD U.S, L.P.; WEATHERFORD/LAMB, INC.
To: STRATUM RESERVOIR (US), LLC
Reel/Frame 049046/0032 →
Grant of Security Interest in Patent Rights
May 20, 2019
From: STRATUM RESERVOIR (US), LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 049234/0650 →
Notice of Termination and Release of Security Interest in Patent Rights
May 18, 2022
From: JPMORGAN CHASE BANK, N.A.
To: STRATUM RESERVOIR (US), LLC
Reel/Frame 060116/0242 →