Van Uum; Donald R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Van Uum; Donald R..The latest application filed is for "high efficiency, extended life spark plug having shaped firing tips".
- Van Uum; Donald R. - Davison MI
| Patent | Date |
|---|---|
| High efficiency, extended life spark plug having shaped firing tips Grant 5,527,198 - Chiu , et al. June 18, 1 | 1996-06-18 |
| Igniter Plug With Improved Electrode Grant 3,691,419 - Van Uum , et al. September 12, 1 | 1972-09-12 |
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