Assignee
ION SYSTEMS INC
US33 patents
Top patents by PatentIndex Score
US5055963AOct 8, 1991
Self-balancing bipolar air ionizer
ION SYSTEMS INC149 citations98
US6389437B2May 14, 2002
System for converting scrolling display to non-scrolling columnar display
ION SYSTEMS INC106 citations97
US6118645ASep 12, 2000
Self-balancing bipolar air ionizer
ION SYSTEMS INC108 citations97
US6088211AJul 11, 2000
Safety circuitry for ion generator
ION SYSTEMS INC52 citations96
US5447763ASep 5, 1995
Silicon ion emitter electrodes
ION SYSTEMS INC54 citations95
US6850403B1Feb 1, 2005
Air ionizer and method
ION SYSTEMS INC142 citations94
US5930105AJul 27, 1999
Method and apparatus for air ionization
ION SYSTEMS INC84 citations94
US4951172AAug 21, 1990
Method and apparatus for regulating air ionization
ION SYSTEMS INC74 citations94
US4901194AFeb 13, 1990
Method and apparatus for regulating air ionization
ION SYSTEMS INC92 citations94
US4542434ASep 17, 1985
Method and apparatus for sequenced bipolar air ionization
ION SYSTEMS INC85 citations93
US7057130B2Jun 6, 2006
Ion generation method and apparatus
ION SYSTEMS INC21 citations92
US6259591B1Jul 10, 2001
Apparatus and method for monitoring of air ionization
ION SYSTEMS INC38 citations92
US6130815AOct 10, 2000
Apparatus and method for monitoring of air ionization
ION SYSTEMS INC25 citations92
US6002573ADec 14, 1999
Self-balancing shielded bipolar ionizer
ION SYSTEMS INC33 citations92
US5650203AJul 22, 1997
Silicon ion emitter electrodes
ION SYSTEMS INC24 citations92
US8009405B2Aug 30, 2011
Low maintenance AC gas flow driven static neutralizer and method
ION SYSTEMS INC24 citations91
US4827371AMay 2, 1989
Method and apparatus for ionizing gas with point of use ion flow delivery
ION SYSTEMS INC43 citations91
US4809127AFeb 28, 1989
Self-regulating air ionizing apparatus
ION SYSTEMS INC111 citations91
US6807044B1Oct 19, 2004
Corona discharge apparatus and method of manufacture
ION SYSTEMS INC53 citations90
US6563110B1May 13, 2003
In-line gas ionizer and method
ION SYSTEMS INC38 citations89
US7212393B2May 1, 2007
Air ionization module and method
ION SYSTEMS INC17 citations88
US6330146B1Dec 11, 2001
Piezoelectric/electrostrictive device and method of manufacturing same
ION SYSTEMS INC39 citations88
US6781205B1Aug 24, 2004
Electrostatic charge measurement on semiconductor wafers
ION SYSTEMS INC24 citations87
US6674630B1Jan 6, 2004
Simultaneous neutralization and monitoring of charge on moving material
ION SYSTEMS INC17 citations84
US6506232B2Jan 14, 2003
Air ionization apparatus and method for efficient generation and cleaning
ION SYSTEMS INC18 citations81
US5768087AJun 16, 1998
Method and apparatus for automatically cleaning ionizing electrodes
ION SYSTEMS INC43 citations81
US4967608ANov 6, 1990
Test chamber for particle emitters
ION SYSTEMS INC20 citations81
US6719142B1Apr 13, 2004
Apparatus and method for measuring static charge on wafers, disks, substrates, masks, and flat panel displays
ION SYSTEMS INC15 citations80
US5539631AJul 23, 1996
Converter circuits using a silicon controlled rectifier
ION SYSTEMS INC12 citations73
USD275317SAug 28, 1984
Combined air ionizer and cleaner
ION SYSTEMS INC10 citations72
USD272086SJan 3, 1984
Combined air ionizer and cleaner
ION SYSTEMS INC11 citations65
USD265924SAug 24, 1982
Air ionizer
ION SYSTEMS INC10 citations65
US6515458B1Feb 4, 2003
Pulse oscillator and voltage level converter
ION SYSTEMS INC6 citations60