Sieghartner; Leonard J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sieghartner; Leonard J..The latest application filed is for "multi-stage pump".
- Sieghartner; Leonard J. - Coal Valley IL
| Patent | Date |
|---|---|
| Multi-stage pump Grant 4,479,756 - Sieghartner October 30, 1 | 1984-10-30 |
| Centrifugal impellers Grant 4,248,571 - Sieghartner * February 3, 1 | 1981-02-03 |
| Centrifugal impellers Grant 4,178,131 - Sieghartner December 11, 1 | 1979-12-11 |
| Floating seals Grant 4,173,350 - Sieghartner November 6, 1 | 1979-11-06 |
| Deformable seal for rotary mechanism Grant 4,155,559 - Sieghartner May 22, 1 | 1979-05-22 |
| Multi-stage pump Grant 3,963,371 - Sieghartner June 15, 1 | 1976-06-15 |
| Cooling And Lubricating System For Bearings Grant 3,690,410 - Sieghartner September 12, 1 | 1972-09-12 |
| Combination Centrifugal-turbine Pump Grant 3,614,256 - Sieghartner October 19, 1 | 1971-10-19 |
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