IP Library › Granted Patent US 6,540,822
Granted Patent Utility
US 6,540,822 · App. 09/812,318

Polybetaines as asphalt emulsifiers

Inventors: Julia Mary Wates, Alan Duncan James
Patented Case View Patent ↗
Granted: Apr 1, 2003 Filed: Mar 20, 2001
Inventors
Julia Mary Wates
Alan Duncan James
Assignee (at issue)
AKZO NOBEL N.V.

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Quick Facts
Patent No.
US 6,540,822
App. No.
09/812,318
Filed
2001-03-20
Granted
2003-04-01
Kind
B2