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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
05/21/2019
Application #:
14646930
Filing Dt:
05/22/2015
Publication #:
Pub Dt:
10/29/2015
PCT #:
US1272102
Inventors:
Derrick W. Lewis, James R. Lovorn, Jon T. Gosney
Title:
Mitigating Swab and Surge Piston Effects in Wellbores
Assignment: 1
Reel/Frame:
030458/0440Recorded: 05/21/2013Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
12/31/2012
Exec Dt:
01/02/2013
Exec Dt:
01/15/2013
Assignee:
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Correspondent:
SMITH IP SERVICES, P.C.
PO BOX 997
ROCKWALL, TX 75087
Assignment: 2
Reel/Frame:
037946/0001Recorded: 03/10/2016Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
12/31/2012
Exec Dt:
01/02/2013
Exec Dt:
01/15/2013
Assignee:
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Correspondent:
CHAMBERLAIN, HRDLICKA
1200 SMITH STREET, 14TH FLOOR
HOUSTON, TX 77002

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