Patent Assignment
Reel/Frame 025824/0001
Change of Name
Recorded: 2011-02-17
Pages: 4
Assignor
COMINCO ENGINEERING SERVICES LTD.
Executed: 2009-06-09
Assignee
CESL LIMITED
SUITE 3300 - 550 BURRARD STREET, VANCOUVER, V6C 0B3, CANADA
Covered Properties
(17)
Hydrometallurgical Copper Extraction Process
Patent:
5,223,024 →
Application:
07/901,097 →
Hydrometallurgical Copper Extraction Process
Patent:
5,316,567 →
Application:
08/035,233 →
Chloride Assisted Hydrometallurgical Copper Extraction
Patent:
5,431,788 →
Application:
08/098,874 →
Chloride Assisted Hydrometallurgical Copper Extraction
Patent:
5,645,708 →
Application:
08/425,117 →
Chloride Assisted Hydrometallurgical Extraction of Metal
Patent:
5,902,474 →
Application:
08/592,730 →
Chloride Assisted Hydrometallurgical Extraction of Metal
Patent:
5,869,012 →
Application:
08/592,731 →
Chloride Assisted Hydrometallurgical Extraction of Metal
Patent:
5,874,055 →
Application:
08/592,732 →
Process for the Recovery of Nickel and/or Cobalt from an Ore or Concentrate
Patent:
5,855,858 →
Application:
08/660,290 →
Process for Extraction of Metal from an Ore or Concentrate Containing Nickel and/or Cobalt
Patent:
6,171,564 →
Application:
09/134,086 →
Process for the Solvent Extraction of Nickel and Cobalt Values in the Presence of Magnesium Ions from a Solution
Patent:
6,054,105 →
Application:
09/200,712 →
Process for the Recovery of Nickel and / or Cobalt from a Concentrate
Chloride Assisted Hydrometallurgical Extraction of Metal
Patent:
37,251 →
Application:
09/358,555 →
A Process for the Extraction of Copper from a Sulphide Copper Ore or Concentrate
Process for the Treatment or Removal of Impurities in a Hydrometallurgical Extraction Process
Process for the Treatment of Molybdenum Concentrate
Pressure Oxidation Leaching in the Presence of an Acidic Solution of Halide and Sulfate Ions from Copper and Base Metal Containing Ore/Concentrate
Solvent Extraction Process for Separating Cobalt from Nickel in Aqueous Solution
Related Assignments
(16)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 19, 1992
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 006180/0782 →
Assignment of Assignor's Interest
Mar 22, 1993
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 006553/0725 →
Assignment of Assignor's Interest
Jul 29, 1993
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES, LTD.
Reel/Frame 006645/0880 →
Assignment of Assignor's Interest
Sep 5, 1995
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 007615/0157 →
Assignment of Assignor's Interest
Apr 29, 1996
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 007957/0008 →
Assignment of Assignor's Interest
Apr 29, 1996
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 007957/0079 →
Assignment of Assignor's Interest
Apr 29, 1996
From: JONES, DAVID J.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 007958/0453 →
Assignment of Assignor's Interest
Aug 22, 1996
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 008150/0366 →
Assignment of Assignor's Interest
Oct 21, 1998
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 009539/0515 →
Assignment of Assignor's Interest
Feb 10, 1999
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 009760/0473 →
Assignment of Assignor's Interest
Feb 10, 1999
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 009760/0162 →
Assignment of Assignor's Interest
Jul 10, 2002
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 013085/0036 →
Assignment of Assignor's Interest
Mar 12, 2003
From: JONES, DAVID L.
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 013848/0218 →
Assignment of Assignor's Interest
Oct 16, 2003
From: JONES, DAVID L.; MOORE, RACHEL; STOCKER, SUSAN KARAN
To: COMINCO ENGINEERING SERVICES LTD.
Reel/Frame 014619/0087 →
Assignment of Assignor's Interest
Jul 30, 2010
From: CHENG, CHU YONG; BARNARD, KEITH RAYMOND; ZHANG, WENSHENG
To: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH
Reel/Frame 024769/0382 →
Assignment of Assignor's Interest
Aug 2, 2010
From: JONES, DAVID LLEWELLYN; MCCOY, TANNICE MARIE; MAYHEW, KEITH EDWARD
To: CESL LIMITED
Reel/Frame 024784/0168 →