Assignment of Assignor's Interest

Recorded: 2002-03-15 Pages: 4

Assignors

KOWALSKI, COREY J.

Executed: 2001-04-23

SMITH, RUSSELL A.

Executed: 2001-04-25

ROE, DONALD C.

Executed: 2001-04-30

Assignee

BETZDEARBORN, INC.

LAW DEPARTMENT, 4636 SOMERTON ROAD, TREVOSE, PENNSYLVANIA, 19053

Covered Property (1)

Mineral Ore Flotation Aid

Patent: 6,536,595 →

Application: 09/847,125 →

Publication: US 2002/0185415

Related Assignments (1)

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