IP Library › Granted Patent US 5,656,699
Granted Patent Utility
US 5,656,699 · App. 08/229,254

Oligoamide-epichlorohydrin resins as drainage aids

Inventors: Sunil P. Dasgupta, Herbert H. Espy
Patented Case View Patent ↗
Granted: Aug 12, 1997 Filed: Apr 18, 1994
Inventors
Sunil P. Dasgupta
Herbert H. Espy
Assignee (at issue)
HERCULES LLC

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Quick Facts
Patent No.
US 5,656,699
App. No.
08/229,254
Filed
1994-04-18
Granted
1997-08-12
Kind
A