IP Library › Assignment 023406/0161
Patent Assignment
Reel/Frame 023406/0161

Assignment of Assignor's Interest

Recorded: 2009-10-21 Pages: 4
Assignors
WONDERS, ALAN GEORGE
Executed: 2009-09-20
SIMPSON, JAMES DONALD
Executed: 2009-10-16
DEBRUIN, BRUCE ROGER
Executed: 2009-10-05
Assignee
EASTMAN CHEMICAL COMPANY
P.O. BOX 511, KINGSPORT, TENNESSEE, 37662
Covered Property (1)
Integrated Steam Heating in Polyester Production Process
Patent: 8,198,397 →
Application: 12/558,003 →
Publication: US 2010/0113736
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 1, 2011
From: EASTMAN CHEMICAL COMPANY
To: GRUPO PETROTEMEX, S.A. DE C.V.
Reel/Frame 025727/0963 →
Change of Name Jan 11, 2022
From: GRUPO PETROTEMEX, S.A. DE C.V.
To: ALPEK POLYESTER, S.A. DE C.V.
Reel/Frame 058691/0337 →