Hermans; Albert L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hermans; Albert L..The latest application filed is for "emergency lighting system with automatic diagnostic test".
- Hermans; Albert L. - San Leandro CA
| Patent | Date |
|---|---|
| Emergency lighting system with automatic diagnostic test Grant 7,045,964 - Hermans May 16, 2 | 2006-05-16 |
| Room occupancy sensor, lens and method of lens fabrication Grant 5,221,919 - Hermans June 22, 1 | 1993-06-22 |
| Low power, leakage current switching circuit Grant 4,874,962 - Hermans October 17, 1 | 1989-10-17 |
| Controlled wave pattern ultrasonic burglar alarm Grant 4,172,253 - Hermans October 23, 1 | 1979-10-23 |
| Controlled Wave Pattern Ultrasonic Burglar Alarm Grant 3,781,859 - Hermans December 25, 1 | 1973-12-25 |
| Ultrasonic Burglar Alarm System Grant 3,721,972 - Hermans March 20, 1 | 1973-03-20 |
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