IP Library › Granted Patent US 4,443,636
Granted Patent Utility
US 4,443,636 · App. 06/398,074

Refining lurgi tar acids

Inventor: Nicholas P. Greco
Patented Case View Patent ↗
Granted: Apr 17, 1984 Filed: Jul 14, 1982
Inventor
Nicholas P. Greco
Assignee (at issue)
KOPPERS, INC.

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Quick Facts
Patent No.
US 4,443,636
App. No.
06/398,074
Filed
1982-07-14
Granted
1984-04-17
Kind
A