Patent Assignment
Reel/Frame 019539/0020
Assignment of Assignor's Interest
Recorded: 2007-06-27
Pages: 4
Assignee
HWCES INTERNATIONAL
THREE ALLEN CENTER, 333 CLAY STREET, C/O OIL STATES INTERNATIONAL, INC., SUITE 4620, HOUSTON, TEXAS, 77002
Covered Property
(1)
Casing Mandrel with Well Stimulation Tool and Tubing Head Spool for Use with the Casing Mandrel
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jun 27, 2007
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 019722/0699 →
Assignment of Assignor's Interest
Jun 27, 2007
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 019722/0837 →
Assignment of Assignor's Interest
Jun 27, 2007
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019734/0768 →
Change of Assignee Address
Jul 17, 2007
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019579/0072 →
Merger
Jan 11, 2013
From: STINGER WELLHEAD PROTECTION, INCORPORATED
To: OIL STATES ENERGY SERVICES, L.L.C.
Reel/Frame 029617/0280 →
Assignment of Assignor's Interest
Feb 16, 2021
From: OIL STATES INTERNATIONAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 055314/0482 →