Assignment of Assignor's Interest

Recorded: 1998-11-20 Pages: 7

Assignors

GRAHAM, R. WILLIAM

Executed: 1998-11-20

XU, TONY

Executed: 1998-11-12

TUMEY, DAVID M.

Executed: 1998-11-12

Assignee

PROTEL, INC.

22 S. ST. CLAIR S.T, DAYTON, OHIO, 45402

Covered Property (1)

Billing System

Patent: 6,044,138 →

Application: 09/197,399 →

Related Assignments (2)

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