Patent Assignment
Reel/Frame 006978/0196
Assignment of Assignor's Interest
Recorded: 1994-03-29
Pages: 3
Assignor
HAYDEN, RICAHRD A.
Executed: 1994-03-22
Assignee
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE, PITTSBURGH, PENNSYLVANIA, 15205
Covered Property
(1)
Method for Reactivating Nitrogen-Treated Carbon Catalysts
Patent:
5,466,645 →
Application:
08/219,207 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.