Patent Assignment
Reel/Frame 023842/0859
Assignment of Assignor's Interest
Recorded: 2010-01-25
Pages: 7
Assignors
WILLIMANN, HONGLI
Executed: 2009-05-15
VALLEE, FRANCK
Executed: 2009-05-15
ZHANG, CHARLES
Executed: 2009-05-07
Assignee
AKZO NOBEL N. V.
VELPERWEG 76, ARNHEM, NL-6824 BM, NETHERLANDS
Covered Property
(1)
Dry Cement Formulation for Cementing Holes in the Earth
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 13, 2017
From: AKZO NOBEL N.V.
To: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
Reel/Frame 044427/0759 →
Security Interest
Oct 1, 2018
From: STARFRUIT US MERGER SUB 1 LLC; STARFRUIT US MERGER SUB 2 LLC; AKZO NOBEL SURFACE CHEMISTRY LLC; AKZO NOBEL CHEMICALS B.V.
To: WILMINGTON TRUST (LONDON) LIMITED, AS COLLATERAL AGENT
Reel/Frame 047231/0001 →
Change of Name
Sep 18, 2019
From: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
To: NOURYON CHEMICALS INTERNATIONAL B.V.
Reel/Frame 050426/0671 →
Release of Security Interest
Apr 2, 2020
From: WILMINGTON TRUST (LONDON) LIMITED, AS COLLATERAL AGENT
To: NOURYON CHEMICALS INTERNATIONAL B.V. (FORMERLY KNOWN AS AKZO NOBEL CHEMICALS INTERNATIONAL B.V.); NOURYON SURFACE CHEMISTRY LLC (FORMERLY KNOWN AS AKZO NOBEL SURFACE CHEMISTRY LLC); NOURYON CHEMICALS B.V. (F/K/A AKZO NOBEL CHEMICALS B.V.)
Reel/Frame 052296/0436 →
Assignment of Assignor's Interest
Aug 27, 2020
From: NOURYON CHEMICALS INTERNATIONAL B.V.
To: NOURYON CHEMICALS AG
Reel/Frame 053616/0266 →
Change of Name
Aug 27, 2020
From: NOURYON CHEMICALS AG
To: CELANESE SWITZERLAND AG
Reel/Frame 053616/0659 →