IP Library Assignment 014059/0689
Patent Assignment
Reel/Frame 014059/0689

Security Interest

Recorded: 2003-04-29 Received: 2003-04-30 Pages: 35
Assignors
Q.V. SERVICES INC.
Executed: 2002-04-16
AES ACQUISTION, L.P.
Executed: 2003-04-16
BROOKS WELL SERVICING, INC.
Executed: 2003-04-16
BROOKS WELL SERVICING, LLC
Executed: 2003-04-16
DAWSON PRODUCTION MANAGEMENT, INC.
Executed: 2003-04-16
DAWSON PRODUCTION PARTNERS, L.P.
Executed: 2003-04-16
DAWSON PRODUCTION TAYLOR, INC.
Executed: 2003-04-16
KALKASKA OILFIELD SERVICES, INC.
Executed: 2003-04-16
KEY ENERGY DRILLING LLC
Executed: 2003-04-16
KEY ENERGY DRILLING, INC.
Executed: 2003-04-16
KEY ENERGY SERVICES, INC.
Executed: 2003-04-16
KEY FOUR CORNERS, INC.
Executed: 2003-04-16
KEY ROCKY MOUNTAIN, INC.
Executed: 2003-04-16
MISR KEY ENERGY SERVICES LLC
Executed: 2003-04-16
Q ENERGY SERVICES, L.L.C.
Executed: 2003-04-16
Q OIL & GAS SERVICES, LLC
Executed: 2003-04-16
Q PRODUCTION SERVICES, L.P.
Executed: 2003-04-16
Q SERVICES, INC
Executed: 2003-04-16
Q.V. SERVICES BENEFICIAL, L.P.
Executed: 2003-04-16
Q.V. SERVICES OF TEXAS, L.P.
Executed: 2003-04-16
Q.V. SERVICES, LLC
Executed: 2003-04-16
QUALITY OIL FIELD SERVICES, L.P.
Executed: 2003-04-16
QUALITY TUBULAR SERVICES, L.P.
Executed: 2003-04-16
UNITRAK SERVICES HOLDING, INC.
Executed: 2003-04-16
UNITRAK SERVICES, L.P.
Executed: 2003-04-16
UNITRAK SERVICES, LLC
Executed: 2003-04-16
WELL-CO OIL SERVICE, INC.
Executed: 2003-04-16
WELLTECH EASTERN INC.
Executed: 2003-04-16
WELLTECH MID-CONTINENT INC
Executed: 2003-04-16
WELLTECH MID-CONTINENT LLC
Executed: 2003-04-16
YALE E. KEY INC
Executed: 2003-04-16
YALE E. KEY BENEFICIAL, L.P.
Executed: 2003-04-16
YALE E. KEY, LLC
Executed: 2003-04-16
Assignee
PNC BANK, NATIONAL ASSOCIATION
249 FIFTH AVENUE, PITTSBURGH, PA, 15222, UNITED STATES
Covered Properties (10)
Engine Speed Limiter for a Hoist
Application: 10/263,630 →
Servicing System for Wells
Application: 10/113,609 →
Tongs Monitor with Learning Mode
Application: 10/046,688 →
Method of Monitoring Pumping Operations of a Service Vehicle at a Well Site
Application: 09/945,924 →
Method of managing workers at a well site
Application: 09/839,411 →
Method of Managing a Well File Record at a Well Site
Application: 09/839,444 →
Method of Monitoring Operations of Multiple Service Vehicles at a Well Site
Application: 09/838,857 →
Method of managing work orders at a well site
Application: 09/839,080 →
Method of managing billing information at a well site
Application: 09/839,103 →
Sucker Rod Tool
Application: 09/768,551 →