Patent Assignment
Reel/Frame 011648/0446
Merger & Change of Name
Recorded: 2001-03-21
Pages: 4
Assignor
RAYTHEON ENGINEERS & CONSTRUCTORS, INC.
Executed: 2000-07-07
Assignee
WASHINGTON GROUP INTERNATIONAL, INC.
720 PARK BOULEVARD, BOISE, IDAHO, 83729
Covered Property
(1)
Crystallization Process for Purification of Paraxylene
Patent:
5,811,629 →
Application:
08/710,733 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 13, 1996
From: HUBBELL, DOUGLAS S.; RUTTEN, PHILIPPE W.M.
To: RAYTHEON ENGINEERS & CONSTRUCTORS, INC.
Reel/Frame 008245/0586 →
Security Interest
Jun 28, 2001
From: WASHINGTON GROUP INTERNATIONAL, INC. F/K/A MORRISON KNUDSEN CORP.
To: CREDIT SUISSE FIRST BOSTON
Reel/Frame 011958/0038 →
Release of Security Agreement
Apr 24, 2003
From: CREDIT SUISSE FIRST BOSTON
To: WASHINGTON GROUP INTERNATIONAL, INC.
Reel/Frame 013986/0457 →
Release of Security Agreement
Apr 24, 2003
From: CREDIT SUISSE FIRST BOSTON
To: WASHINGTON GROUP INTERNATIONAL, INC.
Reel/Frame 013986/0470 →
Assignment of Assignor's Interest
Jul 10, 2003
From: WASHINGTON GROUP INTERNATIONAL, INC.
To: STONE & WEBSTER, INC.
Reel/Frame 014261/0158 →
Assignment of Assignor's Interest
May 14, 2012
From: STONE & WEBSTER, INC.
To: STONE & WEBSTER PROCESS TECHNOLOGY, INC.
Reel/Frame 028204/0349 →