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: | 036508/0792 | |
| Pages: | 6 |
| | Recorded: | 08/31/2015 | | |
| Attorney Dkt #: | 025646-0000 |
| Conveyance: | ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENT |
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Total properties:
8
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Patent #:
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Issue Dt:
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09/14/1999
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Application #:
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08904703
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Filing Dt:
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08/01/1997
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Title:
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LIFTING TOP DRIVE CEMENT HEAD
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Patent #:
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Issue Dt:
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12/15/2015
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Application #:
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12657558
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Filing Dt:
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01/22/2010
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Publication #:
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Pub Dt:
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08/12/2010
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Title:
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Method and apparatus for performing cementing operations
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Patent #:
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Issue Dt:
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01/28/2014
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Application #:
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12807175
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Filing Dt:
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08/30/2010
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Publication #:
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Pub Dt:
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03/03/2011
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Title:
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METHOD AND APPARATUS FOR PERFORMING CEMENTING OPERATIONS ON TOP DRIVE RIGS.
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Patent #:
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Issue Dt:
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11/18/2014
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Application #:
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12932647
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Filing Dt:
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03/02/2011
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Publication #:
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Pub Dt:
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09/08/2011
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Title:
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TATTLE-TALE APPARATUS
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Patent #:
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Issue Dt:
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02/17/2015
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Application #:
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13068916
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Filing Dt:
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05/24/2011
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Publication #:
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Pub Dt:
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12/01/2011
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Title:
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LARGE BORE AUTO-FILL FLOAT EQUIPMENT
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Patent #:
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NONE
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Issue Dt:
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Application #:
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13665422
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Filing Dt:
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10/31/2012
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Publication #:
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Pub Dt:
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05/02/2013
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Title:
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Method and Apparatus for Catching Darts and Other Dropped Objects
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Patent #:
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Issue Dt:
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09/08/2015
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Application #:
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13847729
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Filing Dt:
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03/20/2013
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Publication #:
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Pub Dt:
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09/26/2013
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Title:
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WELL CENTRALIZER
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Patent #:
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NONE
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Issue Dt:
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Application #:
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13875007
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Filing Dt:
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05/01/2013
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Publication #:
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Pub Dt:
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11/07/2013
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Title:
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Method and Apparatus for Launching Objects in Dual Gradient Systems
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Assignee
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| 500 WEST MONROE STREET |
| CHICAGO, ILLINOIS 60661 |
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Correspondence name and address
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LATHAM & WATKINS LLP
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650 TOWN CENTER DRIVE
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SUITE 2000
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COSTA MESA, CA 92626
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