IP Library › Assignment 011648/0758
Patent Assignment
Reel/Frame 011648/0758

Merger-Name Change

Recorded: 2001-03-26 Pages: 4
Assignor
Assignee
WASHINGTON GROUP INTERNATIONAL, INC.
720 PARK BLVD., BOISE, IDAHO, 83729
Covered Property (1)
Cascade Reboiling of Ethylbenzene/Styrene Columns
Patent: 6,171,449 →
Application: 09/100,433 →
Related Assignments (6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 23, 1998
From: WELCH, VINCENT A.
To: RAYTHEON ENGINEERS & CONSTRUCTORS, INC.
Reel/Frame 009347/0028 →
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 →