IP Library › Assignment 015985/0705
Patent Assignment
Reel/Frame 015985/0705

Assignment of Assignor's Interest

Recorded: 2004-11-11 Pages: 2
Assignor
HENDERSON, DAVID EARL
Executed: 2004-11-04
Assignee
PROTON ENERGY SYSTEMS, INC.
10 TECHNOLOGY DRIVE, WALLINGFORD, CONNECTICUT, 06492
Covered Property (1)
Electrochemical Cell Bipolar Plate with Sealing Feature
Patent: 7,452,623 →
Application: 10/985,633 →
Publication: US 2006/0099480
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 →