Patent Assignment
Reel/Frame 061478/0199
Assignment of Assignor's Interest
Recorded: 2022-10-20
Pages: 16
Assignor
BYK USA INC.
Executed: 2020-12-11
Assignee
BYK-CHEMIE GMBH
ABELSTRASSE 45, WESEL, 46483, GERMANY
Covered Property
(1)
Self-Pressurizing Soluble Alkali Silicate for Use in Sealing Subterranean Spaces
Related Assignments
(8)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 11, 2016
From: MCDONALD, MICHAEL JAMES; LI, XIANGLIAN; SHORT, KELLY PAUL, JR.
To: PQ CORPORATION
Reel/Frame 040290/0869 →
Assignment of Assignor's Interest
Nov 11, 2016
From: CRAMER, BRETT HOWARD
To: BYK ADDITIVES, INC.
Reel/Frame 040605/0933 →
Merger
May 19, 2017
From: BYK ADDITIVES INC.
To: BYK USA INC.
Reel/Frame 042436/0509 →
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 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 →
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 →