Patent Assignment
Reel/Frame 067420/0449
Assignment of Assignor's Interest
Recorded: 2024-05-15
Pages: 21
Assignor
PQ SILICAS BRAZIL LTDA
Executed: 2023-12-27
Assignee
PQ LLC
300 LINDENWOOD DRIVE, MALVERN, PENNSYLVANIA, 19355
Covered Properties
(2)
Stable Solution of Sodium and Iron Silicate, Process for Preparing Said Solution and Uses Thereof
Stable Solution of Sodium and Iron Silicate, Process for Preparing Said Solution and Uses Thereof
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 17, 2020
From: VAN DER EERDEN, JORIS ANTONIUS; RIBEIRO, FLAVIO ERNESTO; DOS SANTOS FLOR, RONALDO
To: PQ SILICA BRAZIL LTDA.
Reel/Frame 054387/0552 →
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 →
Abl Patent Security Agreement
Aug 13, 2021
From: ECOVYST CATALYST TECHNOLOGIES LLC
To: CITIBANK, N.A., AS AGENT
Reel/Frame 057182/0449 →
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 →
Assignment of Assignor's Interest
Jun 2, 2022
From: ECOVYST CATALYST TECHNOLOGIES LLC
To: PQ LLC, SUCCESSOR TO PQ CORPORATION
Reel/Frame 060982/0982 →
Assignment of Assignor's Interest
May 14, 2024
From: VAN DER EERDEN, JORIS ANTONIUS; RIBEIRO, FLAVIO ERNESTO; DOS SANTOS FLOR, RONALDO
To: PQ SILICA BRAZIL LTDA.
Reel/Frame 067406/0855 →