Assignment of Assignor's Interest

Recorded: 2005-03-23 Pages: 6

Assignors

KIEFER, JOACHIM

Executed: 2005-02-25

UENSAL, OEMER

Executed: 2005-03-03

CALUNDANN, GORDON

Executed: 2005-03-07

Assignee

CELANESE VENTURES GMBH

INDUSTRIEPARK HOCHST, D-65926 FRANKFURT AM MAIN, GERMANY

Covered Property (1)

Proton-Conducting Polymer Membrane Comprising a Polymer with Sulphonic Acid Groups and Use Thereof in Fuel Cells

Patent: 7,332,530 →

Application: 10/523,373 →

Publication: US 2005/0244695

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.