IP Library › Assignment 023305/0669
Patent Assignment
Reel/Frame 023305/0669

Assignment of Assignor's Interest

Recorded: 2009-09-30 Pages: 3
Assignor
MCGUIRE, BOB
Executed: 2007-07-31
Assignee
STINGER WELLHEAD PROTECTION, INC.
4301 WILL ROGERS PARKWAY, SUITE 600, OKLAHOMA CITY, OKLAHOMA, 73108
Covered Property (1)
Casing Mandrel for Facilitating Well Completion, Re-Completion or Workover
Patent: 7,921,923 →
Application: 12/570,260 →
Publication: US 2010/0012329
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →