IP Library › Assignment 013491/0285
Patent Assignment
Reel/Frame 013491/0285

Assignment of Assignor's Interest

Recorded: 2002-11-18 Pages: 3
Assignor
PQ HOLDING, INC.
Executed: 2002-11-01
Assignee
PQ CORPORATION
1200 W. SWEDESFORD ROAD, BERWYN, PENNSYLVANIA, 19312
Covered Property (1)
Method for Making Silica Supported, Crush-Resistant Catalysts
Patent: 6,887,822 →
Application: 09/964,177 →
Publication: US 2003/0069130
Related Assignments (25)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 25, 2001
From: HU, YATAO
To: PQ CORPORATION
Reel/Frame 012209/0386 →
Assignment of Assignor's Interest Jan 10, 2002
From: PQ CORPORATION
To: PQ HOLDING, INC
Reel/Frame 012476/0199 →
Security Agreement Mar 29, 2005
From: PQ CORPORATION
To: UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 015829/0674 →
First Lien Grant of Security Interest in Patents Aug 30, 2007
From: PQ CORPORATION
To: UBS AG, STAMFORD BRANCH
Reel/Frame 019767/0556 →
Second Lien Grant of Security Interest in Patents Aug 30, 2007
From: PQ CORPORATION
To: UBS AG, STAMFORD BRANCH
Reel/Frame 019767/0568 →
Termination and Release of Security Interest in Intellectual Property Oct 3, 2007
From: UBS AG, STAMFORD BRANCH
To: PQ CORPORATION
Reel/Frame 019910/0678 →
Second Lien Grant of Security Interest in Patents Amendment No. 1 Apr 3, 2012
From: PQ CORPORATION
To: CREDIT SUISSE AG, AS SUCCESSOR AGENT
Reel/Frame 027980/0219 →
First Lien Grant of Security Interest in Patents Amendment No. 1 Apr 3, 2012
From: PQ CORPORATION
To: CREDIT SUISSE AG, AS SUCCESSOR AGENT
Reel/Frame 027980/0194 →
Release of Security Interest in Patents Nov 26, 2012
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: PQ CORPORATION
Reel/Frame 029349/0556 →
Release of Security Interest in Patents Nov 26, 2012
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: PQ CORPORATION
Reel/Frame 029349/0592 →
Security Agreement Nov 29, 2012
From: PQ CORPORATION; POTTERS INDUSTRIES, LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 029370/0103 →
Security Agreement Nov 30, 2012
From: PQ CORPORATION; POTTERS INDUSTRIES, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 029377/0878 →
Release of Security Interest May 4, 2016
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION; POTTERS INDUSTRIES, LLC
Reel/Frame 038611/0927 →
Release of Security Interest May 5, 2016
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION; POTTERS INDUSTRIES, LLC
Reel/Frame 038612/0222 →
Patent Security Agreement (Term) Jun 1, 2016
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 038860/0900 →
Patent Security Agreement (Notes) Jun 1, 2016
From: PQ CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038860/0012 →
Patent Security Agreement (Abl) Jun 1, 2016
From: PQ CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038861/0071 →
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 at R/F 38860/0012 Jul 22, 2020
From: WELLS FARGO BANK, N.A., AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 053281/0616 →
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 →
Release of Security Interest in Patents Recorded at R/F 038860/0900 Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION
Reel/Frame 057089/0382 →
Partial Release of Security Interest in Patents Recorded at R/F 038861/0071 Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 057089/0345 →
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 →