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: | 042428/0778 | |
| Pages: | 17 |
| | Recorded: | 05/18/2017 | | |
| Attorney Dkt #: | WTH TO WTH NETHERLANDS |
| Conveyance: | NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). |
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Total properties:
10
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Patent #:
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Issue Dt:
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10/12/2004
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Application #:
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10208724
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Filing Dt:
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07/30/2002
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Publication #:
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Pub Dt:
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02/05/2004
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Title:
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APPARATUS FOR RELEASING A BALL INTO A WELLBORE
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Patent #:
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Issue Dt:
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12/05/2006
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Application #:
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10867960
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Filing Dt:
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06/15/2004
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Publication #:
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Pub Dt:
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11/25/2004
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Title:
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APPARATUS FOR RELEASING A BALL INTO A WELLBORE
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Patent #:
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Issue Dt:
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05/23/2017
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Application #:
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14179278
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Filing Dt:
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02/12/2014
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Publication #:
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Pub Dt:
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08/14/2014
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Title:
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APPARATUS AND METHODS OF RUNNING CASING IN A DUAL GRADIENT SYSTEM
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Patent #:
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Issue Dt:
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11/26/2019
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Application #:
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14510984
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Filing Dt:
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10/09/2014
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Publication #:
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Pub Dt:
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04/16/2015
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Title:
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SYSTEM AND METHOD FOR SEALING A WELLBORE
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Patent #:
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Issue Dt:
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04/02/2019
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Application #:
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14710090
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Filing Dt:
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05/12/2015
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Publication #:
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Pub Dt:
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11/19/2015
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Title:
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SURGE IMMUNE STAGE SYSTEM FOR WELLBORE TUBULAR CEMENTATION
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Patent #:
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Issue Dt:
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01/29/2019
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Application #:
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14710285
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Filing Dt:
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05/12/2015
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Publication #:
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Pub Dt:
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11/19/2015
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Title:
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CLOSURE DEVICE FOR A SURGE PRESSURE REDUCTION TOOL
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Patent #:
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Issue Dt:
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05/28/2019
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Application #:
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14868049
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Filing Dt:
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09/28/2015
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Publication #:
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Pub Dt:
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03/30/2017
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Title:
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SETTING TOOL WITH PRESSURE SHOCK ABSORBER
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Patent #:
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Issue Dt:
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03/23/2021
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Application #:
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15335118
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Filing Dt:
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10/26/2016
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Publication #:
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Pub Dt:
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04/26/2018
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Title:
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TOP PLUG WITH TRANSITIONABLE SEAL
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Patent #:
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Issue Dt:
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05/12/2020
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Application #:
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15335215
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Filing Dt:
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10/26/2016
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Publication #:
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Pub Dt:
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04/26/2018
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Title:
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CASING FLOATATION SYSTEM WITH LATCH-IN-PLUGS
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Patent #:
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Issue Dt:
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08/13/2019
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Application #:
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15452975
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Filing Dt:
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03/08/2017
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Publication #:
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Pub Dt:
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09/13/2018
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Title:
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SUB-SURFACE RELEASE PLUG SYSTEM
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Assignee
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| SCHRIJNWERKERSWEG 6 |
| 1786 PC |
| DEN HELDER, NETHERLANDS |
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Correspondence name and address
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PATTERSON & SHERIDAN, LLP
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24 GREENWAY PLAZA
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SUITE 1600
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HOUSTON, TX 77046
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