IP Library › Assignment 012259/0631
Patent Assignment
Reel/Frame 012259/0631

Assignment of Assignor's Interest

Recorded: 2001-10-10 Pages: 3
Assignors
SPERANZA, A. JOHN
Executed: 2001-07-31
MOULTHROP, JR., LAWRENCE C.
Executed: 2001-07-31
Assignee
PROTON ENERGY SYSTEMS, INC.
50 INWOOD ROAD, ROCKY HILL, CONNECTICUT, 06067
Covered Property (1)
Electrochemical Cell System Output Control Method and Apparatus
Patent: 6,833,205 →
Application: 09/909,845 →
Publication: US 2002/0020623
Related Assignments (3)
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 →
Assignment of Assignor's Interest Jul 23, 2008
From: SPERANZA, A. JOHN; MOULTHROP, LAWRENCE C., JR.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 021281/0147 →
Release of Security Interest Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →