Assignee
EXTRACTION SYSTEMS INC
US·14 granted patents·4 pending applications·1,067 citations·filing 1993–2004
Top patents by PatentIndex Score
18 records- 0198US6096267ASystem for detecting base contaminants in airEXTRACTION SYSTEMS INC·Filed 1997·Granted Aug 1, 2000·529 cites·24 claims
- 0291US5856198APerformance monitoring of gas-phase air filtersEXTRACTION SYSTEMS INC·Filed 1996·Granted Jan 5, 1999·100 cites·33 claims
- 0389US5607647AAir filtering within clean environmentsEXTRACTION SYSTEMS INC·Filed 1994·Granted Mar 4, 1997·87 cites·35 claims
- 0487US6740147B2Filters employing both acidic polymers and physical-adsorption mediaEXTRACTION SYSTEMS INC·Filed 2001·Granted May 25, 2004·32 cites·55 claims
- 0587US5582865ANon-woven filter compositeEXTRACTION SYSTEMS INC·Filed 1994·Granted Dec 10, 1996·88 cites·26 claims
- 0685US6207460B1Detection of base contaminants in gas samplesEXTRACTION SYSTEMS INC·Filed 1999·Granted Mar 27, 2001·46 cites·18 claims
- 0783US5462485AControlling air qualityEXTRACTION SYSTEMS INC·Filed 1993·Granted Oct 31, 1995·63 cites·16 claims
- 0880US6761753B2Methods using filters employing both acidic polymers and physical-adsorption mediaEXTRACTION SYSTEMS INC·Filed 2002·Granted Jul 13, 2004·20 cites·20 claims
- 0979US6610128B2Filters employing porous strongly acidic polymersEXTRACTION SYSTEMS INC·Filed 2002·Granted Aug 26, 2003·15 cites·14 claims
- 1074US6447584B1Filters employing porous strongly acidic polymersEXTRACTION SYSTEMS INC·Filed 1999·Granted Sep 10, 2002·31 cites·13 claims
- 1173US6296806B1Protection of semiconductor fabrication and similar sensitive processesEXTRACTION SYSTEMS INC·Filed 1997·Granted Oct 2, 2001·33 cites·45 claims
- 1270US6855557B2Detection of base contaminants in gas samplesEXTRACTION SYSTEMS INC·Filed 2001·Granted Feb 15, 2005·12 cites·20 claims
- 1365US6620630B2System and method for determining and controlling contaminationEXTRACTION SYSTEMS INC·Filed 2001·Granted Sep 16, 2003·8 cites·21 claims
- 1452US6759254B2System and method for determining and controlling contaminationEXTRACTION SYSTEMS INC·Filed 2002·Granted Jul 6, 2004·3 cites·11 claims
- 1552US2005106737A1Protection of semiconductor fabrication and similar sensitive processesEXTRACTION SYSTEMS INC·Filed 2004·Application pending·0 cites
- 1644US2005120775A1Systems and methods for detecting contaminantsEXTRACTION SYSTEMS INC·Filed 2004·Application pending·0 cites
- 1739US2002090735A1Protection of semiconductor fabrication and similar sensitive processesEXTRACTION SYSTEMS INC·Filed 2001·Application pending·0 cites
- 1837US2004023419A1System and method for monitoring contaminationEXTRACTION SYSTEMS INC·Filed 2003·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →