William H. Johnson

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Raleigh, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Energy efficient curing and drying system
- Patent number 4,499,911
- Issue date Feb 19, 1985
- William H. Johnson
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Cross-flow modular tobacco curing system
- Patent number 4,021,928
- Issue date May 10, 1977
- Research Corporation
- William Hugh Johnson
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Modular tobacco handling and curing system and method
- Patent number 3,932,946
- Issue date Jan 20, 1976
- Research Corporation
- William H. Johnson
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES