Assignment of Assignor's Interest

Recorded: 2006-10-03 Pages: 3

Assignor

KALT, DAVID S.

Executed: 2006-10-03

Assignee

OPTIONSXPRESS HOLDINGS, INC.

39 S. LASALLE ST., SUITE 220, CHICAGO, ILLINOIS, 60606

Covered Properties (2)

System and Methods for Facilitating Informed Trading of Financial Instruments

Patent: 8,577,779 →

Application: 11/542,098 →

Publication: US 2007/0078745

System and methods for trading patterns of financial instruments

Application: 60/723,829 →

Related Assignments (1)

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