Patent Assignment
Reel/Frame 005282/0415
Assignment of Assignors Interest.
Recorded: 1990-04-05
Pages: 2
Assignor
BUTLER, DOUGLAS
Executed: 1990-04-04
Covered Property
(1)
Sealed Self Aligned Contacts Using Two Nitrides Process
Patent:
5,043,790 →
Application:
07/505,242 →
Related Assignments
(11)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
May 10, 1993
From: RAMTRON CORPORATION
To: RAMTRON INTERNATIONAL CORPORATION
Reel/Frame 006581/0001 →
Change of Name
May 28, 1993
From: NMB SEMICONDUCTOR COMPANY, LTD.
To: NIPPON STEEL SEMICONDUCTOR CORPORATION
Reel/Frame 006554/0575 →
Security Interest
Oct 12, 1993
From: RAMTRON INTERNATIONAL CORPORATION
To: NATIONAL ELECTRICAL BENEFIT FUND; BENTON, OREN L.
Reel/Frame 006721/0286 →
Security Interest
Mar 3, 1995
From: RAMTRON INTERNATIONAL CORPORATION
To: NATIONAL ELECTRICAL BENEFIT FUND
Reel/Frame 007374/0032 →
Security Agreement
Sep 29, 1995
From: RAMTRON INTERNATIONAL CORPORATION
To: NATIONAL ELECTRICAL BENEFIT FUND
Reel/Frame 007662/0353 →
Release/Termination of Security Interest
Sep 29, 1995
From: NATIONAL ELECTRICAL BENEFIT FUND; BENTON, OREN L.
To: RAMTRON INTERNATIONAL CORPORATION
Reel/Frame 007648/0966 →
Security Interest
Apr 12, 2002
From: RAMTRON INTERNATIONAL CORPORATION
To: INFINEON TECHNOLOGIES AG
Reel/Frame 012653/0747 →
Release of Security Interest
Mar 29, 2004
From: NATIONAL ELECTRICAL BENEFIT FUND
To: RAMTRON INTERNATIONAL CORPORATION
Reel/Frame 014468/0248 →
Amendment to Security Agreement and Amendment to Certain Ip
Apr 5, 2004
From: INFINEON TECHNOLOGIES AG
To: RAMTRON INTERNATIONAL CORPORATION
Reel/Frame 014491/0364 →
Assignment of Assignor's Interest
May 24, 2004
From: RAMTRON INTERNATIONAL CORPORATION; ENHANCED MEMORY SYSTEMS, INC.
To: PURPLE MOUNTAIN SERVER LLC
Reel/Frame 014662/0505 →
Merger
Jan 28, 2011
From: PURPLE MOUNTAIN SERVER LLC
To: INTELLECTUAL VENTURES I LLC
Reel/Frame 025715/0378 →