IP Library › Assignment 012561/0341
Patent Assignment
Reel/Frame 012561/0341

Assignment of Assignor's Interest

Recorded: 2002-01-28 Pages: 3
Assignors
SPERANZA, A. JOHN
Executed: 2001-10-01
DRISTY, MARK E.
Executed: 2001-10-08
Assignee
PROTON ENERGY SYSTEMS, INC.
50 INWOOD ROAD, ROCKY HILL, CONNECTICUT, 06067
Covered Property (1)
Integral Membrane Support and Frame Structure
Patent: 7,014,947 →
Application: 09/963,978 →
Publication: US 2002/0106551
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Agreement Jun 8, 2007
From: PROTON ENERGY SYSTEMS, INC.
To: PERSEUS PARTNERS VII, L.P.
Reel/Frame 019399/0436 →
Release of Security Interest Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →