IP Library Assignment 024773/0444
Patent Assignment
Reel/Frame 024773/0444

Assignment of Assignor's Interest

Recorded: 2010-08-02 Pages: 3
Assignors
SPERISEN, THIERRY
Executed: 2010-04-04
VASQUEZ-FAVELA, JAVIER
Executed: 2010-04-06
BOLIO-ARCEO, HUGO
Executed: 2010-04-16
Assignee
CEMEX RESEARCH GROUP AG
ROMERSTRASSE 13, BRUGG, CH-2555, SWITZERLAND
Covered Property (1)
Construction Material Based on Activated Fly Ash
Patent: 8,323,398 →
Application: 12/673,542 →
Publication: US 2011/0259245
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest May 13, 2020
From: CEMEX RESEARCH GROUP AG
To: CEMEX INNOVATION HOLDING LTD
Reel/Frame 052649/0817 →