IP Library › Assignment 020561/0470
Patent Assignment
Reel/Frame 020561/0470

Assignment of Assignor's Interest

Recorded: 2008-02-26 Pages: 8
Assignors
DALLAS, L. MURRAY
Executed: 2005-05-01
MCGUIRE, BOB
Executed: 2005-05-01
Assignee
HWCES INTERNATIONAL
333 CLAY STREET, SUITE 4620, C/O OIL STATES INTERNATIONAL, INC., HOUSTON, TEXAS, 77002
Covered Property (1)
Drilling Flange and Independent Screwed Wellhead with Metal-to-Metal Seal and Method of Use
Patent: 7,475,721 →
Application: 12/037,433 →
Publication: US 2008/0142210
Related Assignments (6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 26, 2008
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 020561/0646 →
Change of Name Feb 26, 2008
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 020561/0833 →
Assignment of Assignor's Interest Feb 26, 2008
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 020608/0419 →
Assignment of Assignor's Interest Feb 26, 2008
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 020788/0343 →
Merger Oct 15, 2012
From: STINGER WELLHEAD PROTECTION, INCORPORATED
To: OIL STATES ENERGY SERVICES, L.L.C.
Reel/Frame 029131/0638 →
Assignment of Assignor's Interest Feb 16, 2021
From: OIL STATES INTERNATIONAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 055314/0482 →