IP Library Assignment 054387/0552
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
Application: 16/993,661 →
Publication: US 2022/0048779
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 →