Patent Assignment
Reel/Frame 054631/0430
Assignment of Assignor's Interest
Recorded: 2020-12-14
Pages: 4
Assignor
GU, FENG
Executed: 2018-07-24
Assignee
W. R. GRACE & CO.-CONN.
7500 GRACE DRIVE, COLUMBIA, MARYLAND, 21044
Covered Property
(1)
Defoamer Active, Manufacturing Method Thereof, and Defoaming Formulation
Application:
17/251,879 →
Publication:
US 2021/0252428
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Feb 17, 2023
From: W.R. GRACE & CO.-CONN.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 062792/0510 →
Security Interest
Apr 2, 2023
From: W. R. GRACE & CO.-CONN.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 063237/0252 →
Security Interest
Apr 2, 2023
From: W. R. GRACE & CO.-CONN.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 063237/0262 →
Release of Security Interest Supplement No. 1, Recorded at Reel/Frame 063237/0252
Feb 2, 2026
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: W. R. GRACE & CO.-CONN.
Reel/Frame 074612/0939 →