Inventor · disambiguated record
Julian Liu
Also filed as: LIU JULIAN
37 granted patents·1 pending application·459 citations·filing 1997–2020
98Inventor score
Files withEVOLUTION TECH INC12LIU JULIAN12EVOLUTION TECHNOLOGIES INC7SILITEK CORP4LITE ON TECHNOLOGY CORP1
Top patents by PatentIndex Score
38 records- 0197US12090115B2Cable tension adjuster for height-adjustable wheeled vehicleEVOLUTION TECH INC·Filed 2020·Granted Sep 17, 2024·4 cites·16 claims
- 0297US8517399B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted Aug 27, 2013·30 cites·6 claims
- 0396US8573613B2Foldable walker apparatusLIU JULIAN·Filed 2010·Granted Nov 5, 2013·32 cites·20 claims
- 0496US8251380B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted Aug 28, 2012·24 cites·9 claims
- 0596US8083239B2Foldable walker apparatusLIU JULIAN·Filed 2008·Granted Dec 27, 2011·29 cites·7 claims
- 0695US8602424B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted Dec 10, 2013·27 cites·15 claims
- 0795US8448960B2Foldable walker apparatusLIU JULIAN·Filed 2012·Granted May 28, 2013·20 cites·12 claims
- 0894US10053062B2Brake assembly for a height-adjustable walker apparatusEVOLUTION TECH INC·Filed 2015·Granted Aug 21, 2018·13 cites·17 claims
- 0994US9763545B2Bath chairEVOLUTION TECH INC·Filed 2016·Granted Sep 19, 2017·10 cites·19 claims
- 1094US9022413B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted May 5, 2015·23 cites·5 claims
- 1193US8864151B1Foldable walker apparatusEVOLUTION TECHNOLOGIES INC·Filed 2013·Granted Oct 21, 2014·18 cites·20 claims
- 1293US8505936B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted Aug 13, 2013·21 cites·17 claims
- 1392US9744094B2Walker apparatus and backrest thereforEVOLUTION TECH INC·Filed 2016·Granted Aug 29, 2017·16 cites·20 claims
- 1492US8936256B2Foldable walker apparatusEVOLUTION TECHNOLOGIES INC·Filed 2013·Granted Jan 20, 2015·19 cites·12 claims
- 1589US9339432B2Walker apparatus and backrest thereforEVOLUTION TECHNOLOGIES INC·Filed 2014·Granted May 17, 2016·19 cites·34 claims
- 1689US8267412B2Foldable walker apparatusLIU JULIAN·Filed 2011·Granted Sep 18, 2012·9 cites·8 claims
- 1789US6901600B2Protective cover for a data storage disc and method of useFiled 2002·Granted May 31, 2005·26 cites·28 claims
- 1889US6651972B2Document feeding apparatusSILITEK CORP·Filed 2002·Granted Nov 25, 2003·32 cites·11 claims
- 1986US9415635B2Foldable walker apparatusEVOLUTION TECH INC·Filed 2014·Granted Aug 16, 2016·10 cites·18 claims
- 2085US9149160B2Bath chairLIU JULIAN·Filed 2011·Granted Oct 6, 2015·7 cites·17 claims
- 2184US11220246B2Brake assembly for height-adjustable patient transport apparatusEVOLUTION TECH INC·Filed 2020·Granted Jan 11, 2022·1 cites·16 claims
- 2281US9192541B2Foldable walker apparatusEVOLUTION TECHNOLOGIES INC·Filed 2013·Granted Nov 24, 2015·4 cites·19 claims
- 2381US8454034B2Foldable walker apparatusLIU JULIAN·Filed 2012·Granted Jun 4, 2013·4 cites·7 claims
- 2480US9307868B2Bath chairEVOLUTION TECHNOLOGIES INC·Filed 2014·Granted Apr 12, 2016·4 cites·23 claims
- 2580US7043742B1Protective cover for a data storage disc and method of useLIU JULIAN·Filed 2005·Granted May 9, 2006·4 cites·6 claims
- 2676US10730489B2Brake assembly for height-adjustable patient transport apparatusEVOLUTION TECH INC·Filed 2018·Granted Aug 4, 2020·1 cites·20 claims
- 2771US9320672B2Foldable walker apparatusEVOLUTION TECHNOLOGIES INC·Filed 2013·Granted Apr 26, 2016·2 cites·11 claims
- 2870USD828701SSet of seat cushionsEVOLUTION TECH INC·Filed 2017·Granted Sep 18, 2018·12 cites·1 claims
- 2967US6557848B2Paper-stopping mechanism of automatic document feederSILITEK CORP·Filed 2001·Granted May 6, 2003·10 cites·10 claims
- 3065US6581926B2Structure for fixing rollerSILITEK CORP·Filed 2001·Granted Jun 24, 2003·9 cites·6 claims
- 3161US9180065B2Foldable walker apparatusEVOLUTION TECHNOLOGIES INC·Filed 2013·Granted Nov 10, 2015·1 cites·10 claims
- 3260US6575452B2Mechanism for automatically and adjustably feeding sheetsSILITEK CORP·Filed 2001·Granted Jun 10, 2003·7 cites·18 claims
- 3359US11648922B2Manually-operated, height-adjustable wheeled vehicle, and a brake assembly and wheel fork assembly thereofEVOLUTION TECH INC·Filed 2020·Granted May 16, 2023·0 cites·18 claims
- 3459US9623888B2Foldable walker apparatusEVOLUTION TECH INC·Filed 2014·Granted Apr 18, 2017·2 cites·20 claims
- 3552US6719284B2Document feeding apparatusLITE ON TECHNOLOGY CORP·Filed 2002·Granted Apr 13, 2004·4 cites·7 claims
- 3651USD886494SSet of seat cushionsEVOLUTION TECH INC·Filed 2016·Granted Jun 9, 2020·5 cites·1 claims
- 3741US2017058930A1Quick-release coupling assembly for upright members of a walker apparatusEVOLUTION TECH INC·Filed 2016·Application pending·0 cites
- 3830US5995683AImage scanner having scan-monitoring functionMUSTEK SYSTEMS INC·Filed 1997·Granted Nov 30, 1999·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →