IP Library › Assignment 028548/0160
Patent Assignment
Reel/Frame 028548/0160

Assignment of Assignor's Interest

Recorded: 2012-07-13 Pages: 4
Assignors
DUHN, REX E.
Executed: 2004-09-22
MEEK, ROBERT K.
Executed: 2004-09-22
Assignee
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE, BAKERSFIELD, CALIFORNIA, 93308
Covered Property (1)
Wellhead Isolation Tool and Wellhead Assembly Incorporating the Same
Patent: 8,333,237 →
Application: 13/480,410 →
Publication: US 2012/0227956
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 13, 2012
From: DUHN OIL TOOL, INC.
To: SEABOARD INTERNATIONAL INC.
Reel/Frame 028548/0924 →
License Feb 6, 2014
From: SEABOARD INTERNATIONAL, INC.
To: CAMERON INTERNATIONAL CORPORATION
Reel/Frame 032158/0360 →
Change of Name Oct 15, 2020
From: SEABOARD INTERNATIONAL INC.
To: SEABOARD INTERNATIONAL LLC
Reel/Frame 054085/0723 →
Change of Name Nov 29, 2021
From: SEABOARD INTERNATIONAL LLC
To: SPM OIL & GAS PC LLC
Reel/Frame 058264/0095 →