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2007
|
Invention
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Ionization detector for electrically enhanced air filtration systems. A system and method for ion... |
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|
Invention
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Low cost fluid flow sensor. A system and method for a low cost fluid flow sensor is described. On... |
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|
Invention
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Dual-filter electrically enhanced air-filtration apparatus and method. A dual-filter electrically... |
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2006
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P/S
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Air filters and air cleaners for heating, air conditioning and other forced-air ventilation syste... |
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Invention
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Electrically enhanced air filtration with improved efficacy. A filter assembly particularly usefu... |
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2005
|
Invention
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Filters and filter assemblies with bypass seal. A filter element having a frame defining an inter... |
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2004
|
Invention
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Electrically enhanced air filtration with improved efficacy. A filter assembly particularly... |
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1995
|
Invention
|
Method and apparatus for use in electronically enhanced air filtration. A high efficiency air fil... |
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1994
|
Invention
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Electrostatic fibrous filter. The particle collection efficiency of a fibrous filter is significa... |
