IP Library › Assignment 037933/0098
Patent Assignment
Reel/Frame 037933/0098

Assignment of Assignor's Interest

Recorded: 2016-03-09 Pages: 8
Assignors
WANG, JIANZHAO
Executed: 2015-04-01
MELBOUCI, MOHAND
Executed: 2015-04-04
Assignee
HERCULES INCORPORATED
500 HERCULES ROAD, WILMINGTON, DELAWARE, 19805
Covered Property (1)
Oil and Gas Treatment Composition Comprising Hydroxyethyl Cellulose and Crosslinked Polyvinylpyrrolidone
Patent: 9,969,921 →
Application: 15/064,999 →
Publication: US 2016/0264836
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name May 19, 2017
From: HERCULES INCORPORATED
To: HERCULES LLC
Reel/Frame 042503/0888 →
Security Agreement Jul 3, 2017
From: AVOCA, INC.; HERCULES LLC; ISP INVESTMENTS LLC; PHARMACHEM LABORATORIES, INC.
To: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT
Reel/Frame 043084/0753 →
Release of Security Interest Jan 10, 2020
From: THE BANK OF NOVA SCOTIA
To: AVOCA LLC; HERCULES LLC; ISP INVESTMENTS LLC; PHARMACHEM LABORATORIES LLC
Reel/Frame 051557/0504 →