Patent Assignment
Reel/Frame 028147/0732
Change of Name
Recorded: 2012-05-03
Pages: 3
Assignor
CALEDUS LIMITED
Executed: 2012-03-21
Assignee
TERCEL OILFIELD PRODUCTS UK LIMITED
4 RUBISLAW TERRACE, AB10 1XE, ABERDEEN, UNITED KINGDOM
Covered Properties
(10)
Drill Pipe Tubing and Casing Protectors
Patent:
5,901,798 →
Application:
08/628,719 →
Method of and Apparatus for Installing the Casing in a Well
Patent:
5,918,677 →
Application:
08/815,553 →
Shoe
Hanging Apparatus and Method
Apparatus and Method for Use in a Well Bore
Downhole Swivel Sub
Shoe for Wellbore Lining Tubing
Shoe for Wellbore Lining Tubing
Fishing Tool
Application:
12/764,905 →
Publication:
US 2010/0270018
Drill Pipe Tubing and Casing Protector
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 9, 2009
From: HOWLETT, PAUL; WARDLEY, MICHAEL; MARR, GRAEME
To: CALEDUS LIMITED
Reel/Frame 023630/0112 →
Change of Name
Mar 10, 2015
From: CALEDUS LIMITED
To: TERCEL OILFIELD PRODUCTS UK LIMITED
Reel/Frame 035124/0958 →
Assignment of Assignor's Interest
Mar 10, 2015
From: TERCEL OILFIELD PRODUCTS UK LIMITED
To: TERCEL IP LIMITED
Reel/Frame 035125/0138 →
Security Interest
Jul 30, 2015
From: TERCEL IP LTD.
To: SILICON VALLEY BANK
Reel/Frame 036216/0095 →
Release of Security Interest
Jan 4, 2019
From: SILICON VALLEY BANK
To: TERCEL IP LTD.
Reel/Frame 047900/0534 →