IP Library › Assignment 035203/0350
Patent Assignment
Reel/Frame 035203/0350

Merger

Recorded: 2015-03-19 Pages: 4
Assignor
STINGER WELLHEAD PROTECTION, INC.
Executed: 2011-12-31
Assignee
OIL STATES ENERGY SERVICES, L.L.C.
333 CLAY STREET, SUITE 4620, HOUSTON, TEXAS, 77002
Covered Property (1)
Ball Drop Wellhead Control Apparatus
Patent: 9,010,412 →
Application: 13/331,903 →
Publication: US 2013/0153237
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 20, 2011
From: MCGUIRE, BOB
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 027421/0292 →
Assignment of Assignor's Interest Feb 16, 2021
From: OIL STATES INTERNATIONAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 055314/0482 →