Patent Assignment
Reel/Frame 054387/0552
Assignment of Assignor's Interest
Recorded: 2020-11-17
Pages: 8
Assignors
VAN DER EERDEN, JORIS ANTONIUS
Executed: 2020-08-25
RIBEIRO, FLAVIO ERNESTO
Executed: 2020-08-19
DOS SANTOS FLOR, RONALDO
Executed: 2020-08-20
Assignee
PQ SILICA BRAZIL LTDA.
AV MARQUES DE SÃO VICENTE Nº 121, ANDAR 6 SALAS 601 À 610, BARRA FUNDA, SÃO PAULO, 01139-00, BRAZIL
Covered Property
(1)
Stable Solution of Sodium and Iron Silicate, Process for Preparing Said Solution and Uses Thereof
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
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 15, 2024
From: PQ SILICAS BRAZIL LTDA
To: PQ LLC
Reel/Frame 067420/0449 →