Walter P. Hempfling

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Mechancisville, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sodium chlorine spray treatment of the leaves present on tobacco pl...
- Patent number 8,905,041
- Issue date Dec 9, 2014
- Philip Morris USA Inc.
- Qinglin Li
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Sodium chloride spray treatment of soil surrounding tobacco plants...
- Patent number 8,353,300
- Issue date Jan 15, 2013
- Philip Morris USA Inc.
- Qinglin Li
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Method for reduction of tobacco specific nitrosamines
- Patent number 6,755,200
- Issue date Jun 29, 2004
- Philip Morris Incorporated
- Walter P. Hempfling
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Method for reduction of tobacco specific nitrosamines
- Patent number 6,564,808
- Issue date May 20, 2003
- Philip Morris Incorporated
- Walter P. Hempfling
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES

Patents Applicationslast 30 patents

Information Patent Application
SPRAY AND/OR SOIL TREATMENT OF TOBACCO TO REDUCE TSNAs
- Publication number 20130146073
- Publication date Jun 13, 2013
- Philip Morris USA Inc.
- Qinglin Li
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
SPRAY AND/OR SOIL TREATMENT OF TOBACCO TO REDUCE TSNAs
- Publication number 20080202538
- Publication date Aug 28, 2008
- Philip Morris USA Inc.
- Qinglin Li
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Method for reduction of tobacco specific nitrosamines
- Publication number 20050121046
- Publication date Jun 9, 2005
- PHILIP MORRIS USA INC.
- Walter P. Hempfling
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
Spray and/or soil treatment of tobacco to reduce TSNAs
- Publication number 20050034365
- Publication date Feb 17, 2005
- PHILIP MORRIS USA INC.
- Qinglin Li
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Method for the reduction of tobacco specific nitrosamines by increa...
- Publication number 20030056801
- Publication date Mar 27, 2003
- Marc R. Krauss
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES