Greiner; Donald William
Patent Applications and Registrations
Patent applications and USPTO patent grants for Greiner; Donald William.The latest application filed is for "automatic darkening filter (adf) eye protection device with improved drive circuitry".
- Greiner; Donald William - Grandville MI
| Patent | Date |
|---|---|
| Automatic darkening filter (ADF) eye protection device with improved drive circuitry Grant 8,264,265 - Greiner , et al. September 11, 2 | 2012-09-11 |
| Automatic Darkening Filter (adf) Eye Protection Device With Improved Drive Circuitry App 20120081162 - GREINER; DONALD WILLIAM ; et al. | 2012-04-05 |
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