Inventor · disambiguated record
Li H. Liu
Also filed as: LIU LI · LIU LI H · LIU LI-HSIUNG
30 granted patents·748 citations·filing 1974–2012
97Inventor score
Top patents by PatentIndex Score
30 records- 0196USD521445SBattery cartridgeSHOP VAC CORP·Filed 2004·Granted May 23, 2006·77 cites·1 claims
- 0294USD521446SBattery cartridgeSHOP VAC CORP·Filed 2004·Granted May 23, 2006·55 cites·1 claims
- 0394US6113663AVacuum cleaner having a dual filter assemblySHOP VAC CORP·Filed 1998·Granted Sep 5, 2000·133 cites·11 claims
- 0491US6440191B1Vacuum cleaner filter assemblySHOP VAC CORP·Filed 2000·Granted Aug 27, 2002·62 cites·18 claims
- 0587USD429042SVacuum cleanerSHOP VAC CORP·Filed 1998·Granted Aug 1, 2000·33 cites·1 claims
- 0686US6110248ADual filter assembly for a vacuum cleanerSHOP VAC CORP·Filed 1998·Granted Aug 29, 2000·65 cites·15 claims
- 0783US4619228AAutomatic compression release for two-cycle engineTEXTRON INC·Filed 1984·Granted Oct 28, 1986·30 cites·18 claims
- 0882US3949716ASpeed limiting governor for internal combustion engineTEXTRON INC·Filed 1974·Granted Apr 13, 1976·32 cites·4 claims
- 0980US7555809B2Wall hanging vacuum cleanerSHOP VAC CORP·Filed 2008·Granted Jul 7, 2009·9 cites·10 claims
- 1080US6557206B1Vacuum cleaner mounting assemblySHOP VAC·Filed 2000·Granted May 6, 2003·29 cites·16 claims
- 1178US8533906B2Vacuum cleaner with recirculated cooling airLIU LI H·Filed 2011·Granted Sep 17, 2013·7 cites·9 claims
- 1278USD571513SVacuum cleanerSHOP VAC CORP·Filed 2007·Granted Jun 17, 2008·24 cites·1 claims
- 1376USD581114SVacuum cleanerSHOP VAC CORP·Filed 2006·Granted Nov 18, 2008·21 cites·1 claims
- 1475US9198552B2Vacuum cleaner with screen cageWOLFE MELVIN E·Filed 2012·Granted Dec 1, 2015·6 cites·15 claims
- 1575US8015661B2Vacuum with rechargeable batterySHOP VAC CORP·Filed 2004·Granted Sep 13, 2011·22 cites·11 claims
- 1672US5588178AImpeller for blower/vacuumMCCULLOCH CORP·Filed 1995·Granted Dec 31, 1996·40 cites·5 claims
- 1769US8707497B2Combination vacuum cleaner, dolly, and mounting bracketLIU LI H·Filed 2009·Granted Apr 29, 2014·3 cites·11 claims
- 1868US6499474B2Air/fuel ratio control apparatus for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Dec 31, 2002·16 cites·10 claims
- 1966USD429394SVacuum cleaner tankSHOP VAC CORP·Filed 1998·Granted Aug 8, 2000·13 cites·1 claims
- 2065USD568565SVacuum cleanerSHOP VAC CORP·Filed 2007·Granted May 6, 2008·14 cites·1 claims
- 2163USD636954SVacuum cleanerSHOP VAC CORP·Filed 2009·Granted Apr 26, 2011·12 cites·1 claims
- 2254USD520444SBattery cartridgeSHOP VAC CORP·Filed 2004·Granted May 9, 2006·8 cites·1 claims
- 2353US6179889B1Vacuum cleaner tank assemblySHOP VAC CORP·Filed 1999·Granted Jan 30, 2001·16 cites·10 claims
- 2452USRE39595EVacuum cleaner tank assemblySHOP VAC CORP·Filed 2003·Granted May 1, 2007·3 cites·11 claims
- 2547USD537578SHandheld vacuumSHOP VAC CORP·Filed 2005·Granted Feb 27, 2007·6 cites·1 claims
- 2645US7089730B2Exhaust gas purification method for internal combustion engineMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Aug 15, 2006·2 cites·11 claims
- 2743USD646860SVacuum cleanerSHOP VAC CORP·Filed 2009·Granted Oct 11, 2011·4 cites·1 claims
- 2835USD688842SVacuum cleanerLIU LI H·Filed 2011·Granted Aug 27, 2013·2 cites·1 claims
- 2935USD683507SVacuum cleanerLIU LI H·Filed 2011·Granted May 28, 2013·2 cites·1 claims
- 3030US4771875AMulti element rotor for a centrifugal clutchTEXTRON INC·Filed 1987·Granted Sep 20, 1988·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →