Assignment of Assignor's Interest

Recorded: 2003-03-10 Pages: 2

Assignor

REY, PAUL

Executed: 2003-02-24

Assignee

KROFF CHEMICAL COMPANY, INC.

ONE NORTH SHORE CENTER, SUITE 450, 12 FEDERAL STREET, PITTSBURGH, PENNSYLVANIA, 15212

Covered Properties (2)

Method of Treating Mine Drainage

Patent: 6,932,909 →

Application: 10/335,081 →

Publication: US 2003/0132166

Method of treating mine drainage

Application: 60/348,642 →