Dunbar; Robert A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dunbar; Robert A..The latest application filed is for "detector for sensing hot spots and fires in a region".
- Dunbar; Robert A. - Swampscott MA
| Patent | Date |
|---|---|
| Detector for sensing hot spots and fires in a region Grant 5,159,200 - Dunbar , et al. October 27, 1 | 1992-10-27 |
| High temperature resistant flame detector Grant 4,988,884 - Dunbar , et al. January 29, 1 | 1991-01-29 |
| Wet bench flame and droplet detector Grant 4,820,931 - Dunbar April 11, 1 | 1989-04-11 |
| Control device responsive to infrared radiation Grant 4,346,427 - Blissett , et al. August 24, 1 | 1982-08-24 |
| Remote sensing and control system Grant 3,921,168 - Dunbar November 18, 1 | 1975-11-18 |
| Coded Card And Reader Therefor Grant 3,699,311 - Dunbar October 17, 1 | 1972-10-17 |
| Dc To Ac Inverter For Producing A Sine-wave Output By Pulse Width Modulation Grant 3,649,902 - Dunbar March 14, 1 | 1972-03-14 |
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