Patent Assignment
Reel/Frame 056513/0760
Assignment of Assignor's Interest
Recorded: 2021-06-11
Pages: 3
Assignee
PQ CORPORATION
P.O. BOX 840, VALLEY FORGE, PENNSYLVANIA, 19482
Covered Property
(1)
Production of Hydrothermally Stable Cha Zeolites
Related Assignments
(14)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Jul 22, 2020
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 053281/0474 →
Release of Security Interest in Patents at R/F 053281/0474
Jun 10, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 056539/0782 →
Term Loan Patent Security Agreement
Jun 10, 2021
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS AGENT
Reel/Frame 056539/0903 →
Assignment of Assignor's Interest
Aug 3, 2021
From: PQ CORPORATION
To: ECOVYST CATALYST TECHNOLOGIES LLC
Reel/Frame 057140/0261 →
Partial Release of Security Interest in Patents Recorded at R/F 056539/0903
Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION
Reel/Frame 057089/0255 →
Term Loan Patent Security Agreement
Aug 13, 2021
From: ECOVYST CATALYST TECHNOLOGIES LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 057182/0552 →
Abl Patent Security Agreement
Aug 13, 2021
From: ECOVYST CATALYST TECHNOLOGIES LLC
To: CITIBANK, N.A., AS AGENT
Reel/Frame 057182/0449 →
Merger
Jul 15, 2024
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 068321/0831 →
Confirmation of Division
Dec 22, 2025
From: ECOVYST CATALYST TECHNOLOGIES LLC
To: ECOVYST US CATALYSTS LLC
Reel/Frame 074023/0497 →
Abl Patent Security Agreement Supplement No. 2
Dec 23, 2025
From: ECOVYST US CATALYSTS LLC
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 074050/0133 →
Term Loan Patent Security Agreement
Dec 23, 2025
From: ECOVYST US CATALYSTS LLC
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 074050/0311 →
Release of Security Interest
Jan 2, 2026
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: ECOVYST CATALYST TECHNOLOGIES LLC; ECOVYST US CATALYSTS LLC
Reel/Frame 073351/0633 →
Release of Security Interest
Jan 2, 2026
From: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
To: ECOVYST CATALYST TECHNOLOGIES LLC; ECOVYST US CATALYSTS LLC
Reel/Frame 073351/0549 →
Merger
Mar 12, 2026
From: ECOVYST US CATALYSTS LLC
To: ADVANCED MATERIALS & CATALYSTS LLC
Reel/Frame 074060/0841 →