Inventor · disambiguated record
Wai Wah Yiu
Also filed as: YIU WAI-WAH
49 granted patents·5 pending applications·1,218 citations·filing 1998–2020
99Inventor score
Top patents by PatentIndex Score
54 records- 0198USD726372SCartridge for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Apr 7, 2015·21 cites·1 claims
- 0298US8551117B2Handheld exfoliating deviceYIU WAI WAH·Filed 2011·Granted Oct 8, 2013·32 cites·18 claims
- 0396USD692181SCosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted Oct 22, 2013·55 cites·1 claims
- 0495USD681277SCosmetic deviceYIU WAI WAH·Filed 2012·Granted Apr 30, 2013·50 cites·1 claims
- 0595US6824546B1Hair removal device with disc and vibration assembliesSOFT LINES LTD·Filed 2000·Granted Nov 30, 2004·46 cites·27 claims
- 0695US6436106B2Hair removal device with disc, vibration, and light assembliesSOFT LINES LTD·Filed 2000·Granted Aug 20, 2002·53 cites·20 claims
- 0794USD686370SSkin removal deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted Jul 16, 2013·44 cites·1 claims
- 0893USD678614SSkin removal deviceYIU WAI WAH·Filed 2011·Granted Mar 19, 2013·43 cites·1 claims
- 0993US5976157AHair removal device with disc assemblyK I S LTD·Filed 1998·Granted Nov 2, 1999·74 cites·10 claims
- 1092USD736999SCosmetic sanding deviceFORSTAR LTD·Filed 2014·Granted Aug 18, 2015·44 cites·1 claims
- 1192USD676200SCosmetic deviceFORSTAR LTD·Filed 2011·Granted Feb 12, 2013·39 cites·1 claims
- 1291USD701648SCosmetic deviceFORSTAR LTD·Filed 2012·Granted Mar 25, 2014·35 cites·1 claims
- 1390USD737517SCosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Aug 25, 2015·28 cites·1 claims
- 1490USD709650SSkin removal deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted Jul 22, 2014·30 cites·1 claims
- 1590US6123713AHair removal device with vibrating assemblyK I S LTD·Filed 1999·Granted Sep 26, 2000·63 cites·17 claims
- 1689USD756034SCosmetic abrasion deviceFORSTAR LTD·Filed 2015·Granted May 10, 2016·31 cites·1 claims
- 1789USD706986SCosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted Jun 10, 2014·28 cites·1 claims
- 1889USD509626SDepilatory device tipK I S LTD·Filed 2003·Granted Sep 13, 2005·38 cites·1 claims
- 1988US10045795B2Handheld cosmetic device with pivoting headSOFT LINES INT LTD·Filed 2016·Granted Aug 14, 2018·4 cites·13 claims
- 2088US9901157B2Nail care deviceSOFT LINES INT LTD·Filed 2015·Granted Feb 27, 2018·4 cites·17 claims
- 2187USD499842SDepilatory deviceSOFT LINES LTD·Filed 2002·Granted Dec 14, 2004·34 cites·1 claims
- 2286US9615645B2Adjustable roller and cosmetic deviceSOFT LINES INT LTD·Filed 2015·Granted Apr 11, 2017·3 cites·15 claims
- 2386USD715493SCosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2012·Granted Oct 14, 2014·28 cites·1 claims
- 2486USD447811SPain relief deviceEMJOI INC·Filed 2001·Granted Sep 11, 2001·33 cites·1 claims
- 2585US10813669B2Multi-movement cosmetic deviceSOFT LINES INT LTD·Filed 2017·Granted Oct 27, 2020·2 cites·18 claims
- 2685USD733965SCosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Jul 7, 2015·25 cites·1 claims
- 2783USD738043SSkin removal deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Sep 1, 2015·19 cites·1 claims
- 2881USD788981SNail and skin abrasion deviceSOFT LINES INT LTD·Filed 2015·Granted Jun 6, 2017·21 cites·1 claims
- 2980USD737520SAttachment for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Aug 25, 2015·19 cites·1 claims
- 3080USD706487SAccessory for a cosmetic deviceFORSTAR LTD·Filed 2012·Granted Jun 3, 2014·24 cites·1 claims
- 3180USD450157SDepilatory deviceEMJOI INC·Filed 2000·Granted Nov 6, 2001·25 cites·1 claims
- 3279USD447282SDepilatory deviceEMJOI INC·Filed 2000·Granted Aug 28, 2001·24 cites·1 claims
- 3377US9491997B2Drum assembly, cosmetic device with drum assembly, and battery compartment for cosmetic deviceSOFT LINES INT LTD·Filed 2014·Granted Nov 15, 2016·7 cites·8 claims
- 3477USD737519SCartridge for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Aug 25, 2015·20 cites·1 claims
- 3575USD780998SNail trimmerSOFT LINES INT LTD·Filed 2016·Granted Mar 7, 2017·15 cites·1 claims
- 3675USD739080SCosmetic deviceFORSTAR LTD·Filed 2014·Granted Sep 15, 2015·14 cites·1 claims
- 3772USD788980SCosmetic abrasion deviceFORSTAR LTD·Filed 2015·Granted Jun 6, 2017·14 cites·1 claims
- 3871USD788984SNail care deviceSOFT LINES INT LTD·Filed 2015·Granted Jun 6, 2017·13 cites·1 claims
- 3971US6559367B1Electronic windchime deviceSOFT LINES LTD·Filed 2001·Granted May 6, 2003·12 cites·17 claims
- 4069US9339099B2Handheld exfoliating deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted May 17, 2016·2 cites·13 claims
- 4168USD737518SCartridge for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2014·Granted Aug 25, 2015·14 cites·1 claims
- 4266USD825108SCartridge for cosmetic deviceSOFT LINES INT LTD·Filed 2016·Granted Aug 7, 2018·0 cites·1 claims
- 4366USD715495SAttachment for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2013·Granted Oct 14, 2014·11 cites·1 claims
- 4464USD753343SCartridge for cosmetic deviceSOFT LINES INTERNATIONAL LTD·Filed 2015·Granted Apr 5, 2016·0 cites·1 claims
- 4561US2021045776A1Multi-movement cosmetic deviceSOFT LINES INT LTD·Filed 2020·Application pending·0 cites
- 4660USD788983SNail and skin abrasion deviceSOFT LINES INT LTD·Filed 2015·Granted Jun 6, 2017·8 cites·1 claims
- 4759USD788982SCosmetic abrasion deviceSOFT LINES INT LTD·Filed 2015·Granted Jun 6, 2017·8 cites·1 claims
- 4859USD788369SNail care deviceSOFT LINES INT LTD·Filed 2015·Granted May 30, 2017·8 cites·1 claims
- 4954US2005187563A1Hair removal device with disc and vibration assembliesSOFT LINES LTD·Filed 2004·Application pending·0 cites
- 5051US2005172490A1Double-sided and single-sided shearing devices including ridgesFiled 2004·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →