IP Library › Granted Patent US 4,797,609
Granted Patent Utility
US 4,797,609 · App. 06/547,550

LED monitoring without external light detection

Inventor: J. Leon Yang
Patented Case View Patent ↗
Granted: Jan 10, 1989 Filed: Dec 12, 1983
Inventor
J. Leon Yang
Assignee (at issue)
PerkinElmer, Inc.

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Quick Facts
Patent No.
US 4,797,609
App. No.
06/547,550
Filed
1983-12-12
Granted
1989-01-10
Kind
A