ION SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5650203 Silicon ion emitter electrodesJul 25, 95Jul 22, 97[H01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6798637 Dynamic air ionizer and methodExpiredNov 13, 02Sep 28, 04[H01H]
2003/0107,379 System and method for monitoring and controlling electrostatic chargeAbandonedDec 10, 01Jun 12, 03[G01R]
6506232 Air ionization apparatus and method for efficient generation and cleaningExpiredMar 13, 01Jan 14, 03[B03C]
6389437 System for converting scrolling display to non-scrolling columnar displayExpiredJan 07, 98May 14, 02[G06F]
6118645 Self-balancing bipolar air ionizerExpiredApr 06, 95Sep 12, 00[H01T]
6088211 Safety circuitry for ion generatorExpiredJun 24, 98Jul 11, 00[H05F]
5539631 Converter circuits using a silicon controlled rectifierExpiredJun 16, 94Jul 23, 96[H02M]
5359750 Control device for film cleaners that remove dust, lint and static charge from filmExpiredMay 07, 93Nov 01, 94[B08B]
5150273 Device for removing dust, lint and static charge from film and plastic surfacesExpiredJan 17, 91Sep 22, 92[H05F]
5055963 Self-balancing bipolar air ionizerExpiredAug 15, 90Oct 08, 91[H01J, H01T]
4967608 Test chamber for particle emittersExpiredMay 02, 89Nov 06, 90[G01N]
4951172 Method and apparatus for regulating air ionizationExpiredJul 20, 88Aug 21, 90[H05F]
4901194 Method and apparatus for regulating air ionizationExpiredDec 29, 88Feb 13, 90[H05F]
4827371 Method and apparatus for ionizing gas with point of use ion flow deliveryExpiredApr 04, 88May 02, 89[H05F]
4809127 Self-regulating air ionizing apparatusExpiredAug 11, 87Feb 28, 89[H05F, H01T, H01H]
4768126 Self-contained device for removing static charge, dust and lint from surfacesExpiredJul 30, 87Aug 30, 88[H05F]
4635161 Device for removing static charge, dust and lint from surfacesExpiredNov 04, 85Jan 06, 87[H05F]
4542434 Method and apparatus for sequenced bipolar air ionizationExpiredFeb 17, 84Sep 17, 85[H05F]
D275317 Combined air ionizer and cleanerExpiredAug 04, 82Aug 28, 84[]
D272086 Combined air ionizer and cleanerExpiredJul 10, 81Jan 03, 84[D230]

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