Preist; Donald H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Preist; Donald H..The latest application filed is for "gridded electron power tube".
- Preist; Donald H. - San Mateo CA
- Preist; Donald H. - Menlo Park CA
| Patent | Date |
|---|---|
| Gridded electron power tube Grant 4,480,210 - Preist , et al. October 30, 1 | 1984-10-30 |
| Modular electron discharge device Grant 4,011,481 - Preist March 8, 1 | 1977-03-08 |
| Ion Sleeve For Arc Lamp Electrode Grant 3,862,449 - Stuart , et al. January 21, 1 | 1975-01-21 |
| Simultaneous Measurement Of The Size Distribution Of Aerosol Particles And The Number Of Particles Of Each Size In A Flowing Gaseous Medium Grant 3,763,428 - Preist October 2, 1 | 1973-10-02 |
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