Patent Assignment
Reel/Frame 012287/0206
Appointment of Agent
Recorded: 2001-10-29
Pages: 3
Assignor
OWNER, NORTHSTAR DRILLING SYSTEMS INC.
Executed: 2001-10-23
Assignee
LAMBERT, ANTHONY R.
#200, 10328 - 81 AVENUE, EDMONTON, ALBERTA, T6E 1, CANADA
Covered Properties
(5)
Apparatus and Method for Logging Wells While Drilling
Patent:
4,578,675 →
Application:
06/429,823 →
Apparatus and Method for Logging Wells While Drilling
Patent:
4,630,243 →
Application:
06/477,262 →
Apparatus and Method for Down-Hole Em Telemetry While Drilling
Patent:
4,739,325 →
Application:
06/838,639 →
Method and Apparatus for Communicating Signals from Within an Encased Borehole
Patent:
5,576,703 →
Application:
08/574,950 →
Electrically Insulative Threaded Connection
Patent:
5,749,605 →
Application:
08/618,283 →
Related Assignments
(15)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 30, 1982
From: MACLEOD, NORMAN C.
To: MACLEOD LABORATORIES, INC., A CORP. OF CA.
Reel/Frame 004055/0383 →
Assignment of Assignors Interest.
Mar 21, 1983
From: MACLEOD, NORMAN C.
To: MACLEOD LABORATORES, INC., A CA CORP.
Reel/Frame 004136/0711 →
Assignment of Assignors Interest.
Mar 6, 1986
From: MACLEOD, NORMAN C.
To: MACLEOD LABORTORIES INCORPORATED, A CORP OF CALIFORNIA
Reel/Frame 004542/0491 →
Assignment of Assignors Interest.
Jan 27, 1992
From: MACLEOD LABORATORIES, INC., A CA CORPORATION
To: PROTECHNICS RESERVOIR SERVICES, INC. A NV CORPORATION
Reel/Frame 005988/0650 →
Assignment of Assignor's Interest
Mar 18, 1996
From: HAMPTON, JOHN T. III; TRAINOR, WILLIAM F.; BANDY, THOMAS R.
To: PROTECHNICS INTERNATIONAL, INC.
Reel/Frame 007931/0052 →
Assignment of Assignor's Interest
Feb 24, 1998
From: PROTECHNICS INTERNATIONAL, INC.
To: CORE LABORATIORES, INC.
Reel/Frame 009014/0144 →
Assignment of Assignor's Interest
Feb 11, 1999
From: PROTECHNICS INTERNATIONAL, INC.
To: CORE LABORATORIES, INC.
Reel/Frame 009748/0643 →
Assignment of Assignor's Interest
Feb 11, 1999
From: PROTECHNICS RESERVOIR SERVICES, INC.
To: CORE LABORATORIES, INC.
Reel/Frame 009748/0654 →
Assignment of Assignor's Interest
Feb 11, 1999
From: REAL TIME DIAGNOSTICS, INC.
To: CORE LABORATORIES, INC.
Reel/Frame 009748/0661 →
Assignment of Assignor's Interest
Mar 5, 2001
From: CORE LABORATORIES, INC.
To: NORTHSTAR DRILLING SYSTEMS, INC.
Reel/Frame 011874/0335 →
Security Interest
Sep 12, 2003
From: NORTHSTAR DRILLING SYSTEMS INC.
To: CANADIAN IMPERIAL BANK OF COMMERCE
Reel/Frame 014506/0431 →
Release of Security Interest
Mar 18, 2004
From: CANADIAN IMPERIAL BANK OF COMMERCE
To: NORTHSTAR DRILLING SYSTEMS INC.
Reel/Frame 015116/0519 →
Transfer of Title
Jul 23, 2004
From: NORTHSTAR DRILLING SYSTEMS INC.
To: NQL ENERGY SERVICES CANADA LTD.
Reel/Frame 014892/0200 →
Change of Name
Oct 26, 2006
From: CORE LABORATORIES, INC.
To: CORE LABORATORIES LP
Reel/Frame 018433/0623 →
Assignment of Assignor's Interest
Apr 30, 2008
From: NQL ENERGY SERVICES CANADA LTD.
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 020876/0333 →