Klassen; Donald J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Klassen; Donald J..The latest application filed is for "high visibility lacrosse ball".
- Klassen; Donald J. - Hudson WI US
- Klassen; Donald J. - Lake Elm MN
| Patent | Date |
|---|---|
| High Visibility Lacrosse Ball App 20190351294 - Klassen; Donald J. | 2019-11-21 |
| Filament reinforced tape Grant 4,770,490 - Gruenewald , et al. September 13, 1 | 1988-09-13 |
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