Hearn; David R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hearn; David R..The latest application filed is for "medical imaging device using triggered plasma cathode flash x-ray source".
- Hearn; David R. - Wellesley MA
| Patent | Date |
|---|---|
| Medical imaging device using triggered plasma cathode flash X-ray source Grant 4,958,365 - Sohval , et al. September 18, 1 | 1990-09-18 |
| Plasma electron source for cold-cathode discharge device or the like Grant 4,570,106 - Sohval , et al. February 11, 1 | 1986-02-11 |
| Plasma electron source for cold-cathode discharge device or the like Grant 4,458,180 - Sohval , et al. July 3, 1 | 1984-07-03 |
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