IP Library › Assignment 022761/0393
Patent Assignment
Reel/Frame 022761/0393

Assignment of Assignor's Interest

Recorded: 2009-06-01 Pages: 5
Assignors
WANG, ZEPING
Executed: 2009-04-08
PRATT, DAN W.
Executed: 2009-06-01
NOE, PAUL
Executed: 2009-03-31
Assignee
OWEN OIL TOOLS LP
6316 WINDFERN, HOUSTON, TEXAS, 77040
Covered Property (1)
Devices and Methods for Perforating a Wellbore
Patent: 8,459,186 →
Application: 12/406,278 →
Publication: US 2009/0255433
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Nov 21, 2022
From: CORE LABORATORIES LP; OWEN OIL TOOLS LP
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 061975/0571 →
Security Interest Jul 26, 2025
From: CORE LABORATORIES LP; OWEN OIL TOOLS LP
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 072243/0293 →