IP Library › Assignment 021281/0147
Patent Assignment
Reel/Frame 021281/0147

Assignment of Assignor's Interest

Recorded: 2008-07-23 Pages: 6
Assignors
SPERANZA, A. JOHN
Executed: 2008-07-22
MOULTHROP, LAWRENCE C., JR.
Executed: 2008-07-09
Assignee
PROTON ENERGY SYSTEMS, INC.
10 TECHNOLOGY DRIVE, WALLINGFORD, CONNECTICUT, 06492
Covered Properties (3)
Electrochemical Cell System Output Control Method and Apparatus
Patent: 6,833,205 →
Application: 09/909,845 →
Publication: US 2002/0020623
Electrochemical cell system output control method and apparatus
Application: 10/941,613 →
Publication: US 2005/0029107
Hydrogen generating pressure control method and apparatus
Application: 60/219,528 →
Related Assignments (4)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 10, 2001
From: SPERANZA, A. JOHN; MOULTHROP, JR., LAWRENCE C.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 012259/0631 →
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: SPERANZA, A. JOHN; MOULTHROP, LAWRENCE C., JR.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 021124/0966 →
Release of Security Interest Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →