Patent Assignment
Reel/Frame 057066/0949
Assignment of Assignor's Interest
Recorded: 2021-08-03
Pages: 10
Assignor
PQ SILICAS UK LIMITED
Executed: 2021-07-29
Assignee
ECOVYST CATALYST TECHNOLOGIES UK LIMITED
4 LIVERPOOL ROAD, BANK QUAY, WARRINGTON, WA5 1AQ, UNITED KINGDOM
Covered Property
(1)
Catalyst Precursor Particles, Their Preparation and Use
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 1, 2010
From: MARSDEN, CHRISTINE ELIZABETH; PARKER, ROBERT JOSEPH
To: PQ SILICAS UK LIMITED
Reel/Frame 024621/0592 →
Change of Name
Jun 29, 2026
From: ECOVYST CATALYST TECHNOLOGIES UK LIMITED
To: T.EN ADVANCED MATERIALS & CATALYSTS UK LIMITED
Reel/Frame 075115/0722 →