IP Library › Granted Patent US 4,780,146
Granted Patent Utility
US 4,780,146 · App. 06/890,450

Modified asphalt

Inventor: Shien-Liang Chang
Patented Case View Patent ↗
Granted: Oct 25, 1988 Filed: Jul 30, 1986
Inventor
Shien-Liang Chang
Assignee (at issue)
Owens-Corning Fiberglas Corp.

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Quick Facts
Patent No.
US 4,780,146
App. No.
06/890,450
Filed
1986-07-30
Granted
1988-10-25
Kind
A