Patent Assignment
Reel/Frame 056168/0326
Assignment of Assignor's Interest
Recorded: 2021-05-07
Pages: 3
Assignor
MCDONALD, MICHAEL J.
Executed: 2021-05-07
Assignee
PQ CORPORATION
300 LINDENWOOD DRIVE, VALLEYBROOKE CORPORATE CENTER, MALVERN, PENNSYLVANIA, 19355-1740
Covered Property
(1)
Method for Plugging and Abandoning Oil and Gas Wells
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 7, 2021
From: VAN OORT, ERIC
To: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
Reel/Frame 056167/0936 →
Term Loan Patent Security Agreement
Jun 10, 2021
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS AGENT
Reel/Frame 056539/0903 →
Security Interest
Aug 3, 2021
From: PQ LLC
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 057060/0874 →
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 →
Change of Name
Dec 2, 2021
From: PQ CORPORATION
To: PQ LLC
Reel/Frame 058295/0836 →