Patent Assignment
Reel/Frame 004410/0420
Assignment of Assignors Interest.
Recorded: 1985-06-07
Pages: 1
Assignee
NALCO CHEMICAL COMPANY
A CORP OF DE, OAK BROOK, ILLINOIS
Covered Property
(1)
Use of Phosphate and Thiophosphate Esters Neutralized with Water Soluble Amines as Ethylene Furnace Anti-Coking Antifoulants
Patent:
4,542,253 →
Application:
06/607,052 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.