Patent Assignment
Reel/Frame 025569/0975
Change of Name
Recorded: 2010-12-28
Pages: 4
Assignor
WWT, INC.
Executed: 2010-03-25
Assignee
WWT INTERNATIONAL, INC.
9758 WHITHORN DRIVE, HOUSTON, TEXAS, 77095
Covered Properties
(4)
In-Situ Method of Forming a Non-Rotating Drill Pipe Protector Assembly
Spring-Operated Anti-Stall Tool
Anti-Stall Tool for Downhole Drilling Assemblies
Rotating Drill Pipe Protector Attachment and Fastener Assembly
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 21, 2008
From: MOORE, N. BRUCE; O'NEAL ERIC J.; MITCHELL, SARAH B.
To: WESTERN WELL TOOL, INC.
Reel/Frame 020860/0956 →
Assignment of Assignor's Interest
Feb 5, 2009
From: MOCK, PHILIP WAYNE; KRUEGER IV, RUDOLPH ERNST
To: WESTERN WELL TOOL, INC.
Reel/Frame 022210/0909 →
Assignment of Assignor's Interest
Feb 9, 2009
From: MOCK, PHILIP WAYNE; KRUEGER IV, RUDOLPH ERNST
To: WESTERN WELL TOOL, INC.
Reel/Frame 022225/0673 →
Assignment of Assignor's Interest
Jun 10, 2009
From: MITCHELL, SARAH B.; KRUEGER, RUDOLPH ERNST, IV; CASASSA, GARRETT C.
To: WESTERN WELL TOOL, INC.
Reel/Frame 022808/0894 →
Change of Name
Dec 28, 2010
From: WESTERN WELL TOOL, INC.
To: WWT, INC.
Reel/Frame 025569/0847 →
Assignment of Assignor's Interest
Feb 24, 2014
From: WWT INTERNATIONAL, INC.
To: WWT NORTH AMERICA HOLDINGS, INC.
Reel/Frame 032284/0642 →
Corrective Assignment to Correct the Assignee State of Incorporation Inside the Assignment Document Previously Recorded at Reel: 022210 Frame: 0909. Assignor(S) Hereby Confirms the Assignment.
Apr 4, 2018
From: MOCK, PHILIP WAYNE; KRUEGER, RUDOLPH ERNST, IV
To: WESTERN WELL TOOL, INC.
Reel/Frame 045856/0985 →