Inventor · disambiguated record
David K. Friday
Also filed as: FRIDAY DAVID · FRIDAY DAVID K
9 granted patents·8 pending applications·197 citations·filing 2001–2009
90Inventor score
Files withFRIDAY DAVID K4AVON PROTECTION SYSTEMS INC3HUBER CORP J M3WITHIAM MICHAEL C3HUNTER MANUFACTURING CO INC1
Top patents by PatentIndex Score
17 records- 0188US7213595B2Multi-stage respirator filter with TIM filter optionAVON PROTECTION SYSTEMS INC·Filed 2003·Granted May 8, 2007·51 cites·13 claims
- 0285US7559981B2Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materialsHUBER CORP J M·Filed 2006·Granted Jul 14, 2009·16 cites·34 claims
- 0384US7311764B2Gas mask filter canisterAVON PROTECTION SYSTEMS INC·Filed 2003·Granted Dec 25, 2007·38 cites·20 claims
- 0480US6860267B2Self-sealing filter connection and gas mask filter assembly incorporating the sameAVON PROTECTION SYSTEMS INC·Filed 2001·Granted Mar 1, 2005·34 cites·12 claims
- 0579US7585359B2Air filtration media comprising metal-doped silicon-based gel and/or zeolite materials treated with nitric acid and/or potassium persulfateHUBER CORP J M·Filed 2006·Granted Sep 8, 2009·10 cites·16 claims
- 0678US7377965B2Air filtration media comprising metal-doped silicon-based gel materialsHUBER CORP J M·Filed 2005·Granted May 27, 2008·8 cites·14 claims
- 0777US7592178B2Filter integrity testerHUNTER MENUFACTURING CO·Filed 2005·Granted Sep 22, 2009·16 cites·11 claims
- 0870US8292991B2Gas mask filter canisterFRIDAY DAVID K·Filed 2007·Granted Oct 23, 2012·11 cites·15 claims
- 0965US7115152B2Four bed regenerable filter systemFRIDAY DAVID K·Filed 2004·Granted Oct 3, 2006·13 cites·56 claims
- 1047US2009260372A1Systems and methods of heating, cooling and humidity control in air filtration adsorbent bedsHUNTER MANUFACTURING CO INC·Filed 2009·Application pending·0 cites
- 1142US2008156192A1Air filtration media comprising metal-doped silicon-based gel materials with nitric acid and/or potassium persulfateSINCLAIR FITZGERALD A·Filed 2006·Application pending·0 cites
- 1242US2010281834A1Filtration heat transfer systemFRIDAY DAVID K·Filed 2008·Application pending·0 cites
- 1342US2008006012A1Air filtration media comprising metal-doped silicon-base gel materials with oxidizing agentsFRIDAY DAVID K·Filed 2006·Application pending·0 cites
- 1441US2007003762A1Air filtration media comprising metal-doped silicon-based gel materialsWITHIAM MICHAEL W·Filed 2005·Application pending·0 cites
- 1538US2007221062A1Air filtration media comprising metal-doped silicon-based gel and zeolite materialsWITHIAM MICHAEL C·Filed 2006·Application pending·0 cites
- 1638US2007221059A1Air filtration media comprising metal-doped silicon-based gel and zeolite materialsWITHIAM MICHAEL C·Filed 2006·Application pending·0 cites
- 1736US2007009416A1Method of producing metal-doped silicon-based gel materialsWITHIAM MICHAEL C·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →