Patent Assignment
Reel/Frame 010977/0141
Assignment of Assignor's Interest
Recorded: 2000-07-18
Pages: 5
Assignor
TUBE-ALLOY CORP.
Executed: 2000-04-13
Assignee
WEATHERFORD/LAMB, INC.
ATTN:MR. SCOTT BROWN, 515 POST OAK BLVD. SUITE 600, HOUSTON, TEXAS, 77027
Covered Properties
(3)
Sliding Sleeve Valve
Patent:
5,263,683 →
Application:
07/878,734 →
Sliding Sleeve Valve and Seal Ring for Use Therein
Patent:
6,044,908 →
Application:
09/087,759 →
Sliding Sleeve Assembly for Subsurface Flow Control
Patent:
6,189,619 →
Application:
09/327,108 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 23, 1992
From: WONG, FRED S.
To: GRACE ENERGY CORPORATION, A CORP. OF DE
Reel/Frame 006199/0720 →
Assignment of Assignor's Interest
Aug 30, 1993
From: HOMCO INTERNATIONAL, INC.
To: WEATHERFORD U.S., INC.
Reel/Frame 006663/0918 →
Assignment of Assignor's Interest
Sep 20, 1993
From: WEATHERFORD, U.S., INC.
To: TUBE-ALLOY CORPORATION
Reel/Frame 006696/0339 →
Assignment of Assignor's Interest
Sep 30, 1996
From: WEATHERFORD U.S., INC.
To: TUBE-ALLOY CORPORATION
Reel/Frame 008153/0542 →
Assignment of Assignor's Interest
Aug 17, 1998
From: WYATT, MARK L.
To: GRANT PRIDECO, INC.
Reel/Frame 009384/0850 →
Assignment of Assignor's Interest
Aug 30, 1999
From: WYATT, MARK L.; HUBER, BRAD N.
To: GRANT PRIDECO, INC.
Reel/Frame 010200/0977 →
Assignment of Assignor's Interest
Dec 10, 2000
From: GRANT PRIDECO, INC.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 011372/0081 →
Assignment of Assignor's Interest
Dec 4, 2014
From: WEATHERFORD/LAMB, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 034526/0272 →