IP Library Assignment 025067/0677
Patent Assignment
Reel/Frame 025067/0677

Assignment of Assignor's Interest

Recorded: 2010-09-30 Pages: 3
Assignors
SPERANZA, A. JOHN
Executed: 2005-09-14
GUDINO, LUISA
Executed: 2005-09-15
Assignee
PROTON ENERGY SYSTEMS, INC.
10 TECHNOLOGY DRIVE, WALLINGFORD, CONNECTICUT, 06492
Covered Property (1)
System for Maintaining Hydrogen Purity in Electrical Generators and Method Thereof
Patent: 7,879,613 →
Application: 12/463,105 →
Publication: US 2009/0211920
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Release of Security Interest Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →