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Patent Assignment Details
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Reel/Frame:005013/0843   Pages: 10
Recorded: 01/17/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Total properties: 29
1
Patent #:
4042123
Issue Dt:
08/16/1977
Application #:
05547375
Filing Dt:
Title:
AUTOMATED PIPE HANDLING SYSTEM
2
Patent #:
4042123
Issue Dt:
08/16/1977
Application #:
05547375
Filing Dt:
Title:
AUTOMATED PIPE HANDLING SYSTEM
3
Patent #:
4187546
Issue Dt:
02/05/1980
Application #:
05777724
Filing Dt:
03/15/1977
Title:
COMPUTER-CONTROLLED OIL DRILLING RIG HAVING DRAWWORKS MOTOR AND BRAKE CONTROL ARRANGEMENT
4
Patent #:
4187546
Issue Dt:
02/05/1980
Application #:
05777724
Filing Dt:
03/15/1977
Title:
COMPUTER-CONTROLLED OIL DRILLING RIG HAVING DRAWWORKS MOTOR AND BRAKE CONTROL ARRANGEMENT
5
Patent #:
4202225
Issue Dt:
05/13/1980
Application #:
05875394
Filing Dt:
02/06/1978
Title:
METHOD AND APPARATUS FOR MANUFACTURING PLASTIC LENSES
6
Patent #:
4327261
Issue Dt:
04/27/1982
Application #:
06003035
Filing Dt:
01/12/1979
Title:
APPARATUS FOR SENSING A DISTENDED LOCATION ON A DRILL PIPE
7
Patent #:
4327261
Issue Dt:
04/27/1982
Application #:
06003035
Filing Dt:
01/12/1979
Title:
APPARATUS FOR SENSING A DISTENDED LOCATION ON A DRILL PIPE
8
Patent #:
4202225
Issue Dt:
05/13/1980
Application #:
06026820
Filing Dt:
04/04/1979
Title:
POWER TONGS CONTROL ARRANGEMENT
9
Patent #:
4202225
Issue Dt:
05/13/1980
Application #:
06026820
Filing Dt:
04/04/1979
Title:
POWER TONGS CONTROL ARRANGEMENT
10
Patent #:
4304433
Issue Dt:
12/08/1981
Application #:
06130761
Filing Dt:
03/17/1980
Title:
PIPE GRIPPING HEAD
11
Patent #:
4304433
Issue Dt:
12/08/1981
Application #:
06130761
Filing Dt:
03/17/1980
Title:
PIPE GRIPPING HEAD
12
Patent #:
4345864
Issue Dt:
08/24/1982
Application #:
06130762
Filing Dt:
03/17/1980
Title:
PIPE MANIPULATOR
13
Patent #:
4345864
Issue Dt:
08/24/1982
Application #:
06130762
Filing Dt:
03/17/1980
Title:
PIPE MANIPULATOR
14
Patent #:
4333209
Issue Dt:
06/08/1982
Application #:
06165585
Filing Dt:
07/03/1980
Title:
ROTARY POWER SLIPS
15
Patent #:
4333209
Issue Dt:
06/08/1982
Application #:
06165585
Filing Dt:
07/03/1980
Title:
ROTARY POWER SLIPS
16
Patent #:
4415193
Issue Dt:
11/15/1983
Application #:
06239308
Filing Dt:
02/27/1981
Title:
SLIP SETTING RING
17
Patent #:
4415193
Issue Dt:
11/15/1983
Application #:
06239308
Filing Dt:
02/27/1981
Title:
SLIP SETTING RING
18
Patent #:
4361940
Issue Dt:
12/07/1982
Application #:
06289945
Filing Dt:
08/04/1981
Title:
SLIP-TYPE ELEVATOR LOCKING MECHANISM
19
Patent #:
4361940
Issue Dt:
12/07/1982
Application #:
06289945
Filing Dt:
08/04/1981
Title:
SLIP-TYPE ELEVATOR LOCKING MECHANISM
20
Patent #:
4436002
Issue Dt:
03/13/1984
Application #:
06329971
Filing Dt:
12/11/1981
Title:
REVERSAL MECHANISM FOR POWER TONG
21
Patent #:
4436002
Issue Dt:
03/13/1984
Application #:
06329971
Filing Dt:
12/11/1981
Title:
REVERSAL MECHANISM FOR POWER TONG
22
Patent #:
4438910
Issue Dt:
03/27/1984
Application #:
06405230
Filing Dt:
08/05/1982
Title:
SHOCK ABSORBING SNUBBER FOR DERRICK HOOKS
23
Patent #:
4438910
Issue Dt:
03/27/1984
Application #:
06405230
Filing Dt:
08/05/1982
Title:
SHOCK ABSORBING SNUBBER FOR DERRICK HOOKS
24
Patent #:
4396216
Issue Dt:
08/02/1983
Application #:
06413044
Filing Dt:
08/30/1982
Title:
LINK ENGAGING PIPE ELEVATOR
25
Patent #:
4396216
Issue Dt:
08/02/1983
Application #:
06413044
Filing Dt:
08/30/1982
Title:
LINK ENGAGING PIPE ELEVATOR
26
Patent #:
4572036
Issue Dt:
02/25/1986
Application #:
06718203
Filing Dt:
04/02/1985
Title:
POWER TONG AND JAW APPARATUS
27
Patent #:
4572036
Issue Dt:
02/25/1986
Application #:
06718203
Filing Dt:
04/02/1985
Title:
POWER TONG AND JAW APPARATUS
28
Patent #:
4875529
Issue Dt:
10/24/1989
Application #:
07133174
Filing Dt:
12/11/1987
Title:
ALTERNATE FORMS OF, SIDE DRIVE DRILLING
29
Patent #:
4791997
Issue Dt:
12/20/1988
Application #:
07142105
Filing Dt:
01/07/1988
Title:
PIPE HANDLING APPARATUS AND METHOD
Assignor
1
HUGHES TOOL CONPANY-USA
Exec Dt:
09/29/1988
Assignee
1
VARCO INTERNATIONAL, INC., A CA. CORP.
800 NORTH ECKHOFF STREET
ORANGE, CALIFORNIA 95668
Correspondence name and address
VARCO INTERNATIONAL, INC.
800 NORTH ECKHOFF STREET
ORANGE, CA. 92668

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