Knight; John D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Knight; John D..The latest application filed is for "material level monitoring and reporting".
- Knight; John D. - Scarborough ME
- Knight; John D. - Marietta GA
- Knight; John D. - Santa Rosa CA
- Knight; John D. - Nashua NH
- Knight; John D. - Mantua OH
| Patent | Date |
|---|---|
| Material level monitoring and reporting Grant 6,662,649 - Knight , et al. December 16, 2 | 2003-12-16 |
| Audio closure Grant 6,545,594 - Knight , et al. April 8, 2 | 2003-04-08 |
| Underground storage tank monitoring system and method Grant 6,374,187 - Knight , et al. April 16, 2 | 2002-04-16 |
| Line leak detection Grant 5,918,268 - Lukas , et al. June 29, 1 | 1999-06-29 |
| Diffraction grating position sensing and control for a scanning monochromator Grant 5,359,409 - Wildnauer , et al. October 25, 1 | 1994-10-25 |
| Optical spectrum analyzer having double-pass monochromator Grant 5,233,405 - Wildnauer , et al. August 3, 1 | 1993-08-03 |
| Residential fuel-oil level reporting and alarm system Grant 4,845,486 - Knight , et al. July 4, 1 | 1989-07-04 |
| Self-storing Awning Grant 3,722,571 - Knight , et al. March 27, 1 | 1973-03-27 |
| Rollup Awning Grant 3,612,145 - Darula , et al. October 12, 1 | 1971-10-12 |
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