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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:008820/0098   Pages: 6
Recorded: 11/14/1997
Conveyance: RELEASE AND TERMINATION OF PATENT SECURITY AGREEMENT
Total properties: 8
1
Patent #:
Issue Dt:
Application #:
05824346
Filing Dt:
Title:
2
Patent #:
Issue Dt:
Application #:
05878205
Filing Dt:
Title:
3
Patent #:
Issue Dt:
12/30/1980
Application #:
06008183
Filing Dt:
01/31/1979
Title:
MULTIPLE CUP DOWNWELL GAS SEPARATOR
4
Patent #:
Issue Dt:
04/21/1981
Application #:
06066631
Filing Dt:
08/15/1979
Title:
DOWNHOLE SEAL FOR LOW PROFILE OIL WELL PUMPING INSTALLATIONS
5
Patent #:
Issue Dt:
02/14/1984
Application #:
06207946
Filing Dt:
11/18/1980
Title:
DOWNHOLE SEAL FOR LOW PROFILE OIL WELL PUMPING INSTALLATIONS
6
Patent #:
Issue Dt:
02/08/1983
Application #:
06309004
Filing Dt:
10/06/1981
Title:
ROTARY DRIVE ASSEMBLY FOR DOWNHOLE ROTARY PUMP
7
Patent #:
Issue Dt:
08/13/1985
Application #:
06468341
Filing Dt:
02/22/1983
Title:
SELF-COMPENSATING OSCILLATORY PUMP CONTROL
8
Patent #:
Issue Dt:
05/28/1985
Application #:
06580684
Filing Dt:
02/16/1984
Title:
OIL WELL STANDING VALVE
Assignor
1
Exec Dt:
09/22/1997
Assignee
1
5555 SAN FELIPE
HOUSTON, TEXAS 77056
Correspondence name and address
MORGAN LEWIS & BOCKIUS LLP
JENNIFER A. ENNIS
1800 M STREET, NW
WASHINGTON, D.C. 20036

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