Williamson; John B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Williamson; John B..The latest application filed is for "nasal mask with replaceable filter".
- Williamson; John B. - Houston TX
- Williamson; John B. - Visalia CA
- Williamson; John B. - Fayetteville TN
- Williamson; John B. - Corona Del Mar CA
Trademarks
| Patent | Date |
|---|---|
| Nasal mask with replaceable filter Grant 6,752,149 - Gillespie , et al. June 22, 2 | 2004-06-22 |
| Nasal mask with replaceable filter App 20040020489 - Gillespie, Michael R. ; et al. | 2004-02-05 |
| Basal and chitinase broth compositions for enhancing anti-fungal activity of a chemical fungicide and methods for preparing and using same Grant 5,811,095 - Williamson , et al. September 22, 1 | 1998-09-22 |
| Lead-acid battery with dimensionally isotropic graphite additive in active material Grant 5,223,352 - Pitts , et al. June 29, 1 | 1993-06-29 |
| Font Grant D331,419 - Chang , et al. December 1, 1 | 1992-12-01 |
| Composite Friction Articles And Methods Of Making Same Grant 3,885,006 - Hatch , et al. May 20, 1 | 1975-05-20 |
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