Inventor · disambiguated record
Lefei Ding
Also filed as: DING LEFEI · DING WILLIAM LEFEI
6 granted patents·7 pending applications·349 citations·filing 2002–2012
88Inventor score
Top patents by PatentIndex Score
13 records- 0198US7655070B1Web comprising fine fiber and reactive, adsorptive or absorptive particulateDONALDSON CO INC·Filed 2007·Granted Feb 2, 2010·161 cites·22 claims
- 0296US8343264B2Web comprising fine fiber and reactive, adsorptive or absorptive particulateDONALDSON CO INC·Filed 2012·Granted Jan 1, 2013·17 cites·14 claims
- 0393US8048210B2Web comprising fine fiber and reactive, adsorptive or absorptive particulateDONALDSON CO INC·Filed 2009·Granted Nov 1, 2011·18 cites·28 claims
- 0493US6645271B2Adsorption element and methodsDONALDSON CO INC·Filed 2002·Granted Nov 11, 2003·69 cites·57 claims
- 0591US6997977B2Adsorptive duct for contaminant removal, and methodsDONALDSON CO INC·Filed 2004·Granted Feb 14, 2006·56 cites·20 claims
- 0682US7022158B2Adsorption element and methodsDONALDSON CO INC·Filed 2003·Granted Apr 4, 2006·28 cites·16 claims
- 0754US2010018396A1Method of Using Adsorptive Filter ElementDONALDSON CO INC·Filed 2007·Application pending·0 cites
- 0845US2005092176A1Adsorptive filter element and methodsFiled 2004·Application pending·0 cites
- 0943US2006130451A1Impregnated filter element, and methodsDING LEFEI·Filed 2004·Application pending·0 cites
- 1042US2006042209A1Alkaline impregnated filter element, and methodsDALLAS ANDREW J·Filed 2004·Application pending·0 cites
- 1142US2006042210A1Acidic impregnated filter element, and methodsDALLAS ANDREW J·Filed 2004·Application pending·0 cites
- 1241US2004069146A1Adsorptive duct for contaminant removal, and methodsCARTER STEVEN ALAN·Filed 2003·Application pending·0 cites
- 1341US2005229562A1Chemical filtration unit incorporating air transportation deviceDALLAS ANDREW J·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →