Patent Assignment
Reel/Frame 006410/0536
Assignment of Assignors Interest.
Recorded: 1993-01-21
Pages: 3
Assignor
HAYDEN, RICHARD A.
Executed: 1993-01-21
Assignee
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE, PITTSBURGH, PENNSYLVANIA, 15205
Covered Property
(1)
Process for Making Catalytic Carbon
Patent:
5,444,031 →
Application:
08/007,169 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.