Patent Assignment
Reel/Frame 006663/0918
Assignment of Assignor's Interest
Recorded: 1993-08-30
Pages: 5
Assignor
HOMCO INTERNATIONAL, INC.
Executed: 1993-03-31
Assignee
WEATHERFORD U.S., INC.
SUITE 1000 1360 POST OAK BLVD., HOUSTON, TX 77056, TEXAS
Covered Properties
(9)
Yield Strength Determination of Terromgnetic Materials
Patent:
4,335,352 →
Application:
06/102,790 →
Intermediate Weight Drill String Member
Patent:
4,460,202 →
Application:
06/210,479 →
Reaming Tool
Patent:
4,618,009 →
Application:
06/638,700 →
Milling Tool
Patent:
4,717,290 →
Application:
06/942,979 →
Method and Apparatus for Detecting the Density of Thickness and Drilling
Patent:
4,811,800 →
Application:
07/111,222 →
Apparatus for Recovering a Wellhead
Patent:
5,146,989 →
Application:
07/671,812 →
Sliding Sleeve Valve
Patent:
5,263,683 →
Application:
07/878,734 →
Casing Cutting and Retrieving Tool
Application:
07/949,399 →
Method and Apparatus to Cut and Remove Casing
Patent:
5,253,710 →
Application:
07/951,305 →
Related Assignments
(16)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 25, 1982
From: STEPHEN, DAVID D.
To: HOMCO INTERNATIONAL INC., A CORP. OF DE.
Reel/Frame 003958/0813 →
Assignment of Assignors Interest.
Nov 27, 1984
From: CHANCE, GLENN G.; KOVENSKY, WILLIAM
To: GRACE NATURAL RESOURCES CORP., A CORP. OF DE
Reel/Frame 004330/0201 →
Assignment of Assignors Interest.
Jun 2, 1986
From: CARTER, THURMAN B.; REYNOLDS, CARL D.; MUNDORF, LARRY R.
To: HOMCO INTERNATIONAL, INC.
Reel/Frame 004555/0898 →
Assignment of Assignors Interest.
Jan 6, 1989
From: HILL, GUY J.; SMITH, HOMER G. JR.; SCHNITKER, MARK W.; BEATTY, GLENN E.
To: HOMCO INTERNATIONAL, INC., A CORP. OF DE
Reel/Frame 005007/0510 →
Change of Name Effective Date, June 7, 1989, De.
Mar 5, 1990
From: GRACE NATURAL RESOURCES CORP., A CORP. OF DE.
To: GRACE ENERGY CORPORATION
Reel/Frame 005243/0278 →
Assignment of Assignors Interest.
Apr 2, 1991
From: ROUSE, GEOFFREY O.
To: HOMCO INTERNATIONAL INC.
Reel/Frame 005686/0650 →
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 Assignors Interest.
Mar 25, 1993
From: GRACE ENERGY CORPORATION
To: HOMCO INTERNATIONAL, INC.
Reel/Frame 006459/0140 →
Assignment of Assignors Interest.
Apr 30, 1993
From: ROUSE, GEOFFREY O.
To: HOMCO INTERNATIONAL, INC.
Reel/Frame 006504/0714 →
Security Interest
Sep 7, 1993
From: WEATHERFORD U.S., INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOICATION
Reel/Frame 006677/0420 →
Assignment of Assignor's Interest
Sep 20, 1993
From: WEATHERFORD, U.S., INC.
To: TUBE-ALLOY CORPORATION
Reel/Frame 006696/0339 →
Release from Security Agreement
Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD U.S., INC.
Reel/Frame 006968/0187 →
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
Jul 18, 2000
From: TUBE-ALLOY CORP.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 010977/0141 →
Assignment of Assignor's Interest
May 17, 2005
From: WEATHERFORD U.S., L.P.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 016016/0867 →
Assignment of Assignor's Interest
May 17, 2005
From: WEATHERFORD U.S., L.P.
To: WEATHERFORD/LAMB, INC.
Reel/Frame 016016/0879 →