Hempfling; Walter P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hempfling; Walter P..The latest application filed is for "spray and/or soil treatment of tobacco to reduce tsnas".
- Hempfling; Walter P. - Mechanicsville VA
- Hempfling; Walter P. - Mechancisville VA
| Patent | Date |
|---|---|
| SPRAY AND/OR SOIL TREATMENT OF TOBACCO TO REDUCE TSNAs App 20080202538 - Li; Qinglin ; et al. | 2008-08-28 |
| Method for reduction of tobacco specific nitrosamines App 20050121046 - Hempfling, Walter P. ; et al. | 2005-06-09 |
| Spray and/or soil treatment of tobacco to reduce TSNAs App 20050034365 - Li, Qinglin ; et al. | 2005-02-17 |
| Method for reduction of tobacco specific nitrosamines Grant 6,755,200 - Hempfling , et al. June 29, 2 | 2004-06-29 |
| Method for reduction of tobacco specific nitrosamines Grant 6,564,808 - Hempfling , et al. May 20, 2 | 2003-05-20 |
| Method for the reduction of tobacco specific nitrosamines by increasing antioxidants in tobacco App 20030056801 - Krauss, Marc R. ; et al. | 2003-03-27 |
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