Patent Assignment
Reel/Frame 021281/0605
Assignment of Assignor's Interest
Recorded: 2008-07-23
Pages: 8
Assignor
DRISTY, MARK E.
Executed: 1997-11-24
Assignee
PROTON ENERGY SYSTEMS, INC.
10 TECHNOLOGY DRIVE, WALLINGFORD, CONNECTICUT, 06492
Covered Properties
(3)
Electrochemical Cell Frame Having Integral Protector Portion
Patent:
6,368,740 →
Application:
09/465,104 →
Electrochemical Cell Frame Having Integral Protector Portion
Electrochemical Cell Frame Having Integral Protector Portion
Application:
60/114,020 →
Related Assignments
(3)
Other recorded transfers of the patents 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 →
Assignment of Assignor's Interest
Jun 20, 2008
From: DRISTY, MARK E.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 021118/0845 →
Release of Security Interest
Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →