IP Library › Granted Patent US 5,953,467
Granted Patent Utility
US 5,953,467 · App. 08/935,585

Switchable optical filter

Inventor: Christi Kay Madsen
Patented Case View Patent ↗
Granted: Sep 14, 1999 Filed: Sep 23, 1997
Inventor
Christi Kay Madsen
Assignee (at issue)
LUCENT TECHNOLOGIES INC.

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Quick Facts
Patent No.
US 5,953,467
App. No.
08/935,585
Filed
1997-09-23
Granted
1999-09-14
Kind
A