Patent Assignment
Reel/Frame 012602/0800
Assignment of Assignor's Interest
Recorded: 2002-02-14
Pages: 2
Assignor
CONSTANTINE, TIMOTHY ALLAN
Executed: 2002-01-09
Assignee
CH2M HILL, INC.
6060 SOUTH WILLOW DRIVE, DENVER, COLORADO, 80222
Covered Property
(1)
Method and Apparatus to Achieve Nitrification at Low Solids Retention Times
Patent:
6,723,244 →
Application:
09/976,678 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Oct 3, 2016
From: CH2M HILL, INC.; CH2M HILL ENGINEERS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 039926/0535 →
Security Interest
Apr 28, 2017
From: CH2M HILL, INC.; CH2M HILL ENGINEERS, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS SECURED NOTES COLLATERAL AGENT
Reel/Frame 042181/0309 →
Release of Security Interest
Dec 18, 2017
From: WILMINGTON TRUST, NA
To: CH2M HILL, INC.; CH2M HILL ENGINEERS, INC.
Reel/Frame 044417/0862 →
Release of Security Interest
Dec 21, 2017
From: WELLS FARGO BANK, NA
To: CH2M HILL ENGINEERS, INC.; CH2M HILL, INC.
Reel/Frame 044460/0727 →