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Patent Assignment Abstract of Title
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Total Assignments: 11
Patent #:
4880060
Issue Dt:
11/14/1989
Application #:
07238741
Filing Dt:
08/31/1988
Inventors:
KENNETH L. SCHWENDEMANN, TIMOTHY J. NOACK
Title:
VALVE CONTROL SYSTEM
Assignment: 1
Reel/Frame:
005012/0501Recorded: 11/22/1988Pages: 251
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
BURROUGHS CORPORATION
Exec Dt:
05/09/1988
Assignee:
UNISYS CORPORATION
TOWNSHIP LINE AND UNION MEETING ROADS
P.O. BOX 500
BLUE BELL, PENNSYLVANIA 19424
Correspondent:
UNISYS CORPORATION
LAW DEPARTMENT
TOWNSHIP LINE AND UNION MEETING ROADS
P.O. BOX 500
BLUE BELL, PA 19424
Assignment: 2
Reel/Frame:
004982/0447Recorded: 11/18/1988Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
SCHWENDEMANN, KENNETH L.
Exec Dt:
11/15/1988
NOACK, TIMOTHY J.
Exec Dt:
11/14/1988
Assignee:
OTIS ENGINEERING CORPORATION, A CORP. OF DE
CARROLLTON
DALLAS, TEXAS
Correspondent:
ROLAND O. COX
P. O. BOX 819052
DALLAS, TX 75381-9052
Assignment: 3
Reel/Frame:
005003/0843Recorded: 02/21/1989Pages: 1
Conveyance:
LICENSE (SEE DOCUMENT FOR DETAILS).
Assignor:
OTIS ENGINEERING CORPORATION
Exec Dt:
02/08/1989
Assignee:
HALLIBURTON COMPANY, A COMPANY OF DE.
Correspondent:
JAMES R. DUZAN
P. O. BOX 1431
DUNCAN, OKLAHOMA 73536-0102
Assignment: 4
Reel/Frame:
005145/0564Recorded: 08/07/1989Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO LICENSE RECITED
Assignor:
OTIS ENGINEERING CORPORATION
Exec Dt:
02/08/1989
Assignee:
HALLIBURTON COMPANY, A DE CORP.
Correspondent:
JAMES R. DUZAN
P. O. BOX 1431
DUNCAN, OKLAHOMA 73536-0102
Assignment: 5
Reel/Frame:
015008/0320Recorded: 08/20/2004Pages: 6
Conveyance:
SECURITY AGREEMENT
Assignor:
POWER CHOKES, L.P.
Exec Dt:
07/30/2004
Assignee:
BANK OF AMERICA, N.A.
901 MAIN STREET
DALLAS, TEXAS 75202
Correspondent:
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389
Assignment: 6
Reel/Frame:
015361/0234Recorded: 11/16/2004Pages: 7
Conveyance:
SECURITY AGREEMENT SUPPLEMENT
Assignor:
POWER CHOKES, L.P.
Exec Dt:
07/30/2004
Assignee:
BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
901 MAIN STREET
MAIL CODE: TX-492-14-11
DALLAS, TEXAS 75292
Correspondent:
MOORE & VAN ALLEN PLLC
430 DAVIS DRIVE
SUITE 500
MORRISVILLE, NC 27560
Assignment: 7
Reel/Frame:
014953/0258Recorded: 08/06/2004Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
HALLIBURTON ENERGY SERVICES, INC.
Exec Dt:
08/02/2004
Assignee:
POWER CHOKES, L.P.
10815 HUFFMEISTER
CYPRESS, TEXAS 77429
Correspondent:
CINDY LEE
1001 FANNIN
2300 FIRST CITY TOWER
HOUSTON, TX 77002
Assignment: 8
Reel/Frame:
016408/0583Recorded: 08/17/2005Pages: 5
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
POWER CHOKES, L.P.
Exec Dt:
09/17/2004
Assignee:
POWER WELL SERVICES, L.P.
12777 JONES RD.
SUITE 280
HOUSTON, TEXAS 77070
Correspondent:
JESSICA GREENEY
1001 FANNIN ST., SUITE 2300
FIRST CITY TOWER
HOUSTON, TX 77002-6760
Assignment: 9
Reel/Frame:
016480/0377Recorded: 09/01/2005Pages: 5
Conveyance:
RELEASE OF PATENT SECURITY AGREEMENT SUPPLEMENT
Assignor:
BANK OF AMERICA, N.A.
Exec Dt:
08/17/2005
Assignee:
POWER WELL SERVICES, L.P.
12777 JONES ROAD, SUITE 280
HOUSTON, TEXAS 77070
Correspondent:
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389
Assignment: 10
Reel/Frame:
016480/0398Recorded: 09/01/2005Pages: 7
Conveyance:
AMENDMENT TO PATENT SECURITY AGREEMENT SUPPLEMENT
Assignor:
POWER WELL SERVICES, L.P.
Exec Dt:
08/17/2005
Assignee:
BANK OF AMERICA, N.A.
901 MAIN STREET
MAIL CODE: TX1-492-14-11
DALLAS, TEXAS 75202
Correspondent:
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389
Assignment: 11
Reel/Frame:
018061/0840Recorded: 08/08/2006Pages: 5
Conveyance:
RELEASE OF PATENT SECURITY AGREEMENT SUPPLEMENT
Assignor:
BANK OF AMERICA, N.A.
Exec Dt:
07/31/2006
Assignee:
POWER WELL SERVICES, L.P.
12777 JONES ROAD, SUITE 280
HOUSTON, TEXAS 77070
Correspondent:
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389

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