IP Library › Assignment 026926/0457
Patent Assignment
Reel/Frame 026926/0457

Change of Name

Recorded: 2011-09-16 Pages: 3
Assignor
DOWNHOLE PRODUCTS PLC
Executed: 2008-03-28
Assignee
DOWNHOLE PRODUCTS LIMITED
BADENTOY ROAD, BADENTOY PARK, PORTLETHEN, ABERDEEN, AB12 4YA, UNITED KINGDOM
Covered Properties (10)
Gripping Device
Patent: 5,860,760 →
Application: 08/776,918 →
Casing Centraliser
Patent: 6,435,275 →
Application: 09/378,858 →
Publication: US 2002/0023749
Downhole Tool
Patent: 6,401,820 →
Application: 09/446,930 →
Adi Centralizer
Patent: 6,845,816 →
Application: 09/803,191 →
Publication: US 2001/0035291
Downhole Tool
Patent: 6,659,173 →
Application: 10/102,459 →
Publication: US 2002/0096368
Centraliser
Patent: 6,830,102 →
Application: 10/182,099 →
Publication: US 2003/0010540
Slotted Expandable Centraliser
Patent: 7,096,939 →
Application: 10/507,031 →
Publication: US 2005/0150654
Cement Flow Control Tool
Patent: 7,743,829 →
Application: 10/531,858 →
Publication: US 2006/0000993
Downhole Apparatus for Mobilising Drill Cuttings
Application: 10/594,157 →
Publication: US 2007/0215388
Centralizer
Patent: 7,694,733 →
Application: 11/795,460 →
Publication: US 2008/0210419
Related Assignments (10)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 11, 1997
From: KIRK, IAN ALASTAIR
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 008418/0580 →
Assignment of Assignor's Interest Nov 1, 1999
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 010350/0789 →
Assignment of Assignor's Interest Dec 29, 1999
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRUM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 010574/0589 →
Assignment of Assignor's Interest Jun 11, 2001
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM; RIMMER, ARRON
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 011895/0127 →
Assignment of Assignor's Interest Mar 19, 2002
From: KIRK, IAN A.; BARRON, WILLIAM; CLARK, ALISTAIR BERTRUM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 013004/0772 →
Assignment of Assignor's Interest Jul 22, 2002
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 013374/0270 →
Assignment of Assignor's Interest Sep 8, 2004
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 016437/0020 →
Assignment of Assignor's Interest Apr 19, 2005
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 017084/0159 →
Assignment of Assignor's Interest Sep 26, 2006
From: KIRK, IAN ALASTAIR; BARRON, WILLIAM; CLARK, ALISTAIR BERTRAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 018358/0838 →
Assignment of Assignor's Interest Jun 27, 2008
From: CLARK, ALISTAIR BERTRAM; KIRK, IAN ALASTAIR; BARRON, WILLIAM
To: DOWNHOLE PRODUCTS PLC
Reel/Frame 021184/0344 →