Inventor · disambiguated record
Huan-Jan Chien
Also filed as: CHIEN HUAN-JAN
40 granted patents·3 pending applications·324 citations·filing 1992–2023
97Inventor score
Top patents by PatentIndex Score
43 records- 0189USD1054534SDiaphragm valveBUENO TECH CO LTD·Filed 2023·Granted Dec 17, 2024·12 cites·1 claims
- 0288US6220819B1Centrifugal pump impellerIND TECH RES INST·Filed 2000·Granted Apr 24, 2001·50 cites·14 claims
- 0388US5320493AUltra-thin low noise axial flow fan for office automation machinesIND TECH RES INST·Filed 1992·Granted Jun 14, 1994·81 cites·6 claims
- 0484US11835142B2Buffer valveBUENO TECH CO LTD·Filed 2022·Granted Dec 5, 2023·1 cites·32 claims
- 0582US11391390B2Diaphragm valve structureBUENO TECH CO LTD·Filed 2021·Granted Jul 19, 2022·1 cites·19 claims
- 0681US9657924B2LED 3D curved lead frame of illumination deviceLONGWIDE TECH INC·Filed 2015·Granted May 23, 2017·3 cites·1 claims
- 0777US9557041B2LED 3D curved lead frame of illumination deviceLONGWIDE TECH INC·Filed 2013·Granted Jan 31, 2017·3 cites·4 claims
- 0877US6439835B1Pump shell for multistage metal working pumpFiled 2000·Granted Aug 27, 2002·28 cites·7 claims
- 0975US9631799B2LED 3D curved lead frame of illumination deviceLONGWIDE TECH INC·Filed 2015·Granted Apr 25, 2017·2 cites·1 claims
- 1075US6736377B1Structure for an oxygen adding and aeration devicePOLYVANE TECHNOLOGY CORP·Filed 2003·Granted May 18, 2004·22 cites·7 claims
- 1174US9169842B2Permanent magnet canned motor pump with corrosion-protection housingASSOMA INC·Filed 2012·Granted Oct 27, 2015·4 cites·12 claims
- 1273US9400096B2Integrated illumination part and lead frame of umbrellaLONGWIDE TECH INC·Filed 2015·Granted Jul 26, 2016·2 cites·22 claims
- 1371US6779974B2Device of a volute channel of a pumpPOLYVANE TECHNOLOGY CORP·Filed 2002·Granted Aug 24, 2004·29 cites·22 claims
- 1470US11585460B2Diaphragm valve structureBUENO TECH CO LTD·Filed 2021·Granted Feb 21, 2023·0 cites·2 claims
- 1569US11396955B2Diaphragm valve structureBUENO TECH CO LTD·Filed 2021·Granted Jul 26, 2022·0 cites·18 claims
- 1669US9670934B2Magnetic drive pumpASSOMA INC·Filed 2012·Granted Jun 6, 2017·2 cites·5 claims
- 1766US9897102B2Structure improvement of pump casing with PFA linerASSOMA INC·Filed 2015·Granted Feb 20, 2018·2 cites·3 claims
- 1866US6398493B1Floatable impeller for multistage metal working pumpIND TECH RES INST·Filed 2000·Granted Jun 4, 2002·17 cites·7 claims
- 1964US9060575B2Integrated illumination part and lead frame of umbrellaLONGWIDE TECHNOLOGY INC·Filed 2012·Granted Jun 23, 2015·5 cites·7 claims
- 2062USD1054535SDiaphragm valveBUENO TECH CO LTD·Filed 2023·Granted Dec 17, 2024·2 cites·1 claims
- 2162US11067192B2Diaphragm valve structure and thermal isolation method thereofBUENO TECH CO LTD·Filed 2019·Granted Jul 20, 2021·0 cites·17 claims
- 2262US9599113B2Permanent magnet motor pumpASSOMA INC·Filed 2012·Granted Mar 21, 2017·1 cites·5 claims
- 2362US6619923B2Integrated 3-D blade structureIND TECH RES INST·Filed 2000·Granted Sep 16, 2003·12 cites·4 claims
- 2461US9746118B2Method and structure for preventing slipping-off of a tube in a pipe joint made of fluororesinBUENO TECH CO LTD·Filed 2014·Granted Aug 29, 2017·1 cites·3 claims
- 2560US8597000B2Structural improvement of a canned motor pumpCHIEN HUAN-JAN·Filed 2010·Granted Dec 3, 2013·2 cites·9 claims
- 2659US10267327B2Magnetic drive pumpASSOMA INC·Filed 2017·Granted Apr 23, 2019·0 cites·5 claims
- 2759US10190593B2Magnetic drive pumpASSOMA INC·Filed 2017·Granted Jan 29, 2019·0 cites·2 claims
- 2858US9702364B2Permanent magnet motor pumpASSOMA INC·Filed 2016·Granted Jul 11, 2017·0 cites·5 claims
- 2958US6506023B1Integrally formed stamping sheet-metal blades having 3D structureIND TECH RES INST·Filed 2000·Granted Jan 14, 2003·10 cites·16 claims
- 3057USD917667SDiaphragm valveBUENO TECH CO LTD·Filed 2019·Granted Apr 27, 2021·6 cites·1 claims
- 3156US9951778B2Permanent magnet motor pumpASSOMA INC·Filed 2016·Granted Apr 24, 2018·0 cites·16 claims
- 3250US11873914B2Buffer valveBUENO TECH CO LTD·Filed 2022·Granted Jan 16, 2024·0 cites·20 claims
- 3350US11739642B2Manufacturing method of 3-dimensional plastic impeller of centrifugal pump and the impellerASSOMA INC·Filed 2019·Granted Aug 29, 2023·0 cites·13 claims
- 3447US11898660B2Fluororesin diaphragm valveBUENO TECH CO LTD·Filed 2021·Granted Feb 13, 2024·0 cites·12 claims
- 3546US11035474B2Fluoroplastic butterfly valve structureBUENO TECH CO LTD·Filed 2019·Granted Jun 15, 2021·0 cites·12 claims
- 3645US6634856B2Integrally formed stamped sheet-metal blades having 3D structureIND TECHNOLOGY RES INSITUTE·Filed 2002·Granted Oct 21, 2003·4 cites·9 claims
- 3745US6267555B1Sheet metal casing for multistage pump and method for manufacturing the sameIND TECH RES INST·Filed 2000·Granted Jul 31, 2001·10 cites·14 claims
- 3843US2010284804A1Vertical submerged pump for chemical applicationCHIEN HUAN-JAN·Filed 2009·Application pending·0 cites
- 3942US6537024B2Method for fabricating sheet metal pump casingIND TECH RES INST·Filed 2001·Granted Mar 25, 2003·5 cites·10 claims
- 4037US8696149B2Structures of luminous umbrellaCHIEN HUAN-JAN·Filed 2011·Granted Apr 15, 2014·0 cites·7 claims
- 4137US2005042119A1Structural improvement for canned motor-pumpPOLYVANE TECHNOLOGY CORP·Filed 2003·Application pending·0 cites
- 4230US2017184282A1Led illumination apparatus and manufacturing method thereofLONGWIDE TECH INC·Filed 2016·Application pending·0 cites
- 4328US6200090B1Pump casing for sheet metal pumpIND TECH RES INST·Filed 1999·Granted Mar 13, 2001·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →