Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Reel/Frame: | 012631/0885 | |
| Pages: | 4 |
| | Recorded: | 02/20/2002 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
6
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Patent #:
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Issue Dt:
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01/24/1995
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Application #:
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08101751
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Filing Dt:
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08/04/1993
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Title:
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APPARATUS FOR ROTATING A TUBING STRING OF A PUMPING WELLHEAD
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Patent #:
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Issue Dt:
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11/14/1995
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Application #:
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08382205
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Filing Dt:
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02/01/1995
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Title:
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TUBING STRING HANGING APPARATUS
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Patent #:
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Issue Dt:
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08/18/1998
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Application #:
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08641761
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Filing Dt:
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05/02/1996
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Title:
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DUAL TUBING STRING HANGING APPARATUS
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Patent #:
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Issue Dt:
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05/05/1998
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Application #:
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08748031
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Filing Dt:
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11/12/1996
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Title:
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OIL WELL BLOW-OUT PREVENTER AND SEALING DEVICE
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Patent #:
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Issue Dt:
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03/02/1999
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Application #:
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08832637
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Filing Dt:
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04/04/1997
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Title:
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OIL WELL BLOW-OUT PREVENTER
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Patent #:
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Issue Dt:
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03/13/2001
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Application #:
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09257007
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Filing Dt:
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02/25/1999
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Title:
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PULL-THROUGH TUBING STRING ROTATOR FOR AN OIL WELL
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Assignee
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C/O R&M ENERGY SYSTEMS |
8750-58 AVENUE EDMONTON |
ALBERTA, CANADA T6E 6 |
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Correspondence name and address
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BROWNING BASHMAN, PC
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LOREN G. HELMREICH
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5718 WESTHEIMER ROAD, SUITE 1800
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HOUSOTN, TEXAS 77057-5771
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Domestic representative
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LOREN G. HELMREICH
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BROWING BUSHMAN, PC
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5718 WESTHEIMER ROAD
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SUITE 1800
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HOUSTON, TEXAS 77057-5771
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