IP Library › Granted Patent US 5,174,649
Granted Patent Utility
US 5,174,649 · App. 07/731,621

LED lamp including refractive lens element

Inventor: Kevin G. Alston
Patented Case View Patent ↗
Granted: Dec 29, 1992 Filed: Jul 17, 1991
Inventor
Kevin G. Alston
Assignee (at issue)
Precision Solar Controls Inc.

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Quick Facts
Patent No.
US 5,174,649
App. No.
07/731,621
Filed
1991-07-17
Granted
1992-12-29
Kind
A