Charles J. Steffl

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Belview, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for delivery of biomass fuel
- Patent number 7,305,924
- Issue date Dec 11, 2007
- Step Saver, Inc.
- Charles J Steffl
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR DELIVERY AND RECLAMATION OF BIOMASS FUEL
- Publication number 20080283142
- Publication date Nov 20, 2008
- Charles J. Steffl
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Apparatus and method for delivery of biomass fuel
- Publication number 20050126454
- Publication date Jun 16, 2005
- Step Saver, Inc.
- Charles J. Steffl
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES