Nafziger; Steven
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nafziger; Steven.The latest application filed is for "integrated check valve testing system".
- Nafziger; Steven - Dekalb County GA
- Nafziger; Steven - Chamblee GA
- Nafziger; Steven - Fulton County GA
- Nafziger; Steven - Gwinnett GA
| Patent | Date |
|---|---|
| Integrated check valve testing system Grant 5,154,080 - Hill , et al. October 13, 1 | 1992-10-13 |
| Check valve testing system Grant 4,977,778 - Nafziger , et al. December 18, 1 | 1990-12-18 |
| Ultrasonic testing system with variable angle transducer mount Grant 4,782,702 - Boone , et al. November 8, 1 | 1988-11-08 |
| Torque measuring system for motor operated valve operators Grant 4,759,224 - Charbonneau , et al. July 26, 1 | 1988-07-26 |
| Motor operated valve analysis and testing system with monitoring of spring pack movement through torque switch post Grant 4,735,101 - Charbonneau , et al. April 5, 1 | 1988-04-05 |
| Motor operated valve analysis and testing system Grant 4,712,071 - Charbonneau , et al. December 8, 1 | 1987-12-08 |
| Motor operated valve analysis and testing system Grant 4,693,113 - McNennamy , et al. September 15, 1 | 1987-09-15 |
| Motor operated valve analysis and testing system Grant 4,690,003 - McNennamy , et al. * September 1, 1 | 1987-09-01 |
| Motor operated valve analysis and testing system with monitoring of spring pack movement through side by side monitoring device Grant 4,660,416 - Charbonneau , et al. April 28, 1 | 1987-04-28 |
| Motor operated valve analysis and testing system Grant 4,542,649 - Charbonneau , et al. September 24, 1 | 1985-09-24 |
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