Alan Lorenz Breitenfeldt

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Wausau, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Two stage air filter
- Patent number 6,994,743
- Issue date Feb 7, 2006
- Greenheck Fan Corporation
- Kyle A. Brownell
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Two stage air filter
- Patent number 6,797,041
- Issue date Sep 28, 2004
- Greenheck Fan Corporation
- Kyle A. Brownell
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Centrifugal air filter
- Patent number 6,251,153
- Issue date Jun 26, 2001
- Greenheck Fan Corporation
- Emery W. Neitzel
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Two stage air filter
- Publication number 20040194623
- Publication date Oct 7, 2004
- Kyle A. Brownell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Two stage air filter
- Publication number 20030164093
- Publication date Sep 4, 2003
- Kyle A. Brownell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL