IP Library › Granted Patent US 4,696,677
Granted Patent Utility
US 4,696,677 · App. 06/850,467

Quaternary ammonium salts of anionic gums

Inventors: George T. Colegrove, Kenneth Clare
Patented Case View Patent ↗
Granted: Sep 29, 1987 Filed: Apr 11, 1986
Inventors
George T. Colegrove
Kenneth Clare
Assignee (at issue)
MERCK & CO., INC.

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Quick Facts
Patent No.
US 4,696,677
App. No.
06/850,467
Filed
1986-04-11
Granted
1987-09-29
Kind
A