IP Library › Assignment 012099/0273
Patent Assignment
Reel/Frame 012099/0273

Assignment of Assignor's Interest

Recorded: 2001-08-15 Pages: 3
Assignors
CHENG, CHUNG-PING
Executed: 2001-08-14
SPENCER, MICHAEL D.
Executed: 2001-08-14
Assignee
ENGELHARD CORPORATION
101 WOOD AVENUE, ISELIN, NEW JERSEY, 08830
Covered Property (1)
(Cycloalkyl) Methyl Silanes as External Donors for Polyolefin Catalysts
Patent: 6,469,112 →
Application: 09/930,520 →
Publication: US 2002/0028893
Related Assignments (6)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Oct 22, 2016
From: BASF LEC CATALYSTS LLC
To: BASF CORPORATION
Reel/Frame 040094/0412 →
Assignment of Assignor's Interest Oct 22, 2016
From: BASF CATALYSTS LLC
To: BASF LEC CATALYSTS LLC
Reel/Frame 040255/0083 →
Merger Oct 22, 2016
From: ENGELHARD CORPORATION
To: BASF CATALYSTS LLC
Reel/Frame 040255/0104 →
Assignment of Assignor's Interest Oct 22, 2016
From: BASF CORPORATION
To: W. R. GRACE & CO. - CONN.
Reel/Frame 040255/0136 →
Security Interest Apr 3, 2018
From: W. R. GRACE & CO.-CONN.
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 045828/0683 →
Release of Security Interest Sep 23, 2021
From: GOLDMAN SACHS BANK USA
To: W. R. GRACE & CO.-CONN.
Reel/Frame 057594/0026 →