IP Library › Granted Patent US 5,308,705
Granted Patent Utility
US 5,308,705 · App. 07/589,235

Water repellent surface treatment

Inventors: Helmut Franz, George B. Goodwin
Patented Case View Patent ↗
Granted: May 3, 1994 Filed: Sep 28, 1990
Inventors
Helmut Franz
George B. Goodwin
Assignee (at issue)
PPG Industries, Inc.

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Quick Facts
Patent No.
US 5,308,705
App. No.
07/589,235
Filed
1990-09-28
Granted
1994-05-03
Kind
A