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Arnold J. Steinman
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Berkeley, CA, US
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last 30 patents
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Patent Grant
Method and apparatus for regulating air ionization
Patent number
4,951,172
Issue date
Aug 21, 1990
Ion Systems, Inc.
Arnold J. Steinman
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for regulating air ionization
Patent number
4,901,194
Issue date
Feb 13, 1990
Ion Systems, Inc.
Arnold J. Steinman
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Self-regulating air ionizing apparatus
Patent number
4,809,127
Issue date
Feb 28, 1989
Ion Systems, Inc.
Arnold J. Steinman
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for sequenced bipolar air ionization
Patent number
4,542,434
Issue date
Sep 17, 1985
Ion Systems, Inc.
Scott J. S. Gehlke
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE