Witzigreuter; John Douglas
Patent Applications and Registrations
Patent applications and USPTO patent grants for Witzigreuter; John Douglas.The latest application filed is for "manually powered projectile launcher".
- Witzigreuter; John Douglas - Canton GA
- Witzigreuter; John Douglas - Kennesaw GA
| Patent | Date |
|---|---|
| Chalk marking projectile Grant 7,604,556 - Witzigreuter October 20, 2 | 2009-10-20 |
| Manually Powered Projectile Launcher App 20090084372 - Witzigreuter; John Douglas | 2009-04-02 |
| Chalk Marking Projectile App 20080039248 - Witzigreuter; John Douglas | 2008-02-14 |
| Synthetic jet for admitting and expelling reactant air Grant 6,759,159 - Gray , et al. July 6, 2 | 2004-07-06 |
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