IP Library › Assignment 027593/0853
Patent Assignment
Reel/Frame 027593/0853

Assignment of Assignor's Interest

Recorded: 2012-01-25 Pages: 3
Assignor
MATHENA, HAROLD DEAN
Executed: 2008-06-27
Assignee
MATHENA, INC.
3901 VALLEY PARK DRIVE, EL RENO, OKLAHOMA, 73036
Covered Property (1)
Ecologically Sensitive Mud-Gas Containment System
Patent: 8,641,811 →
Application: 13/000,964 →
Publication: US 2011/0114389
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger and Change of Name May 12, 2017
From: SEABOARD INTERNATIONAL, INC., A TEXAS CORPORATION; MATHENA, INC., AN OKLAHOMA CORPORATION
To: SEABOARD INTERNATIONAL, INC., A TEXAS CORPORATION
Reel/Frame 042361/0138 →
Merger Aug 9, 2017
From: MATHENA, INC.
To: SEABOARD INTERNATIONAL INC.
Reel/Frame 043246/0518 →
Change of Name Oct 15, 2020
From: SEABOARD INTERNATIONAL INC.
To: SEABOARD INTERNATIONAL LLC
Reel/Frame 054085/0723 →
Change of Name Mar 8, 2023
From: SEABOARD INTERNATIONAL LLC
To: SPM OIL & GAS PC LLC
Reel/Frame 063011/0207 →