Patent Assignment
Reel/Frame 009667/0428
Assignment of Assignor's Interest
Recorded: 1998-12-23
Pages: 2
Assignee
ASHLAND INC.
P.O. BOX 2219, COLUMBUS, OHIO, 43216
Covered Property
(1)
Composition and Method for Selectively Etching a Silicon Nitride Film
Patent:
6,162,370 →
Application:
09/141,897 →
Related Assignments
(8)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 19, 1999
From: HACKETT, THOMAS B.; HATCHER, ZACH III
To: ASHLAND INC.
Reel/Frame 010179/0861 →
Assignment of Assignor's Interest
Oct 20, 2003
From: ASHLAND INC.
To: AIR PRODUCTS AND CHEMICALS, INC.
Reel/Frame 014567/0846 →
Assignment of Assignor's Interest
Feb 21, 2008
From: AIR PRODUCTS AND CHEMICALS, INC.
To: KMG ELECTRONIC CHEMICALS, INC.
Reel/Frame 020540/0146 →
Assignment of Assignor's Interest
Apr 25, 2008
From: AIR PRODUCTS AND CHEMICALS, INC.
To: KMG ELECTRONIC CHEMICALS, INC.
Reel/Frame 020859/0167 →
Assignment of Assignor's Interest
Feb 20, 2017
From: AIR PRODUCTS AND CHEMICALS, INC.
To: VERSUM MATERIALS US, LLC
Reel/Frame 041772/0733 →
Security Agreement
Nov 16, 2018
From: CABOT MICROELECTRONICS CORPORATION; QED TECHNOLOGIES INTERNATIONAL, INC.; FLOWCHEM LLC; KMG ELECTRONIC CHEMICALS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 047588/0263 →
The Submission Is to Correct an Error Made in a Previously Recorded Document That Erroneously Affects the Identified Application and Patents.
Jun 26, 2020
From: KMG ELECTRONIC CHEMICALS, INC.
To: KMG ELECTRONIC CHEMICALS, INC.
Reel/Frame 053062/0396 →
Release of Security Interest
Jul 6, 2022
From: JPMORGAN CHASE BANK, N.A.
To: CABOT MICROELECTRONICS CORPORATION; QED TECHNOLOGIES INTERNATIONAL, INC.; FLOWCHEM LLC; KMG ELECTRONIC CHEMICALS, INC.
Reel/Frame 060592/0260 →