IP Library › Assignment 006935/0322
Patent Assignment
Reel/Frame 006935/0322

Assignment of Assignor's Interest

Recorded: 1994-03-29 Pages: 3
Assignors
HAYDEN, RICHARD A.
Executed: 1994-03-22
BUTTERWORTH, STEVEN L.
Executed: 1994-03-22
Assignee
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE, PITTSBURGH, PENNSYLVANIA, 15205
Covered Property (1)
Process for Regenerating Nitrogen-Treated Carbonaceous Chars Used for Hydrogen Sulfide Removal
Patent: 5,494,869 →
Application: 08/219,625 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Agreement Jun 6, 2007
From: CALGON CARBON CORPORATION
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 019382/0937 →
Release of Security Interest May 12, 2009
From: JPMORGAN CHASE BANK, N.A.
To: CALGON CARBON CORPORATION
Reel/Frame 022668/0296 →