Joy; Robert D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Joy; Robert D..The latest application filed is for "measurement of automobile exhaust flow".
- Joy; Robert D. - Marion IA
- Joy; Robert D. - Cedar Rapids IA
| Patent | Date |
|---|---|
| Measurement of automobile exhaust flow Grant 7,716,973 - Joy May 18, 2 | 2010-05-18 |
| Measurement of automobile exhaust flow Grant 7,343,778 - Joy March 18, 2 | 2008-03-18 |
| Method and apparatus for determining the position of an object Grant 4,898,464 - Thorne , et al. February 6, 1 | 1990-02-06 |
| Vortex flow meter frequency adjustment Grant 4,437,349 - Joy March 20, 1 | 1984-03-20 |
| Method and apparatus for determining fluid density and mass flow Grant 4,240,299 - Joy , et al. December 23, 1 | 1980-12-23 |
| Method And Apparatus For Sensing The Relative Direction And Velocity Of Movement Of A Body In A Liquid Or Gas Medium Grant 3,797,309 - Joy , et al. March 19, 1 | 1974-03-19 |
| Sonic Velocity Sensing Grant 3,680,375 - Joy , et al. August 1, 1 | 1972-08-01 |
| Touch Sensitive Indicators Grant 3,648,647 - Joy March 14, 1 | 1972-03-14 |
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