Patent Assignment
Reel/Frame 018970/0421
Assignment of Assignor's Interest
Recorded: 2007-03-06
Pages: 3
Assignors
NAUGLER, STEVEN
Executed: 2006-12-14
PUFKA, STEVEN J.
Executed: 2006-12-14
STACK, JEFFREY R.
Executed: 2006-12-12
WANG, WEITUNG
Executed: 2006-12-04
Assignee
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS
451 BELLEVUE ROAD, NEWARK, DELAWARE, 19713
Covered Property
(1)
Curved Grooving of Polishing Pads
Patent:
7,234,224 →
Application:
11/592,910 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Feb 11, 2025
From: ROHM & HAAS ELECTRONIC MATERIALS CMP HOLDINGS INC.
To: DUPONT ELECTRONIC MATERIALS HOLDING, INC.
Reel/Frame 070172/0940 →
Security Interest
Nov 3, 2025
From: QNITY ELECTRONICS, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 073515/0243 →
Security Interest
Nov 3, 2025
From: QNITY ELECTRONICS, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 073517/0298 →