Inventor · disambiguated record
Chih-Hao Yiu
Also filed as: YIU CHIH H · YIU CHIH-HAO
35 granted patents·15 pending applications·422 citations·filing 1993–2007
98Inventor score
Top patents by PatentIndex Score
50 records- 0182US6854530B1Method for driving electric percussion toolFiled 2003·Granted Feb 15, 2005·35 cites·4 claims
- 0279US6807128B2Position detecting and correcting device for timepieceFiled 2002·Granted Oct 19, 2004·22 cites·7 claims
- 0378US6731571B2Position detecting and correcting device for timepieceFiled 2002·Granted May 4, 2004·22 cites·6 claims
- 0477US6804173B2Rotary members for timepiece having reflector sheetsFiled 2002·Granted Oct 12, 2004·19 cites·4 claims
- 0574USD393491SElectronic dart gameYIU CHIH-HAO·Filed 1996·Granted Apr 14, 1998·18 cites·1 claims
- 0674USD390277SElectronic dart gameYIU CHIH-HAO·Filed 1997·Granted Feb 3, 1998·18 cites·1 claims
- 0769US6516813B2Thermal finger nail decal attaching deviceFiled 2001·Granted Feb 11, 2003·12 cites·4 claims
- 0869USD400932SElectronic dart gameYIU CHIH-HAO·Filed 1997·Granted Nov 10, 1998·15 cites·1 claims
- 0969USD390278SElectronic dart gameYIU CHIH-HAO·Filed 1997·Granted Feb 3, 1998·15 cites·1 claims
- 1069USD378103SDart targetYIU CHIH-HAO·Filed 1995·Granted Feb 18, 1997·15 cites·1 claims
- 1166US5934706ASkate device having magnetic supportFiled 1997·Granted Aug 10, 1999·23 cites·7 claims
- 1265USD386795SDart board for use on a tableYIU CHIH-HAO·Filed 1996·Granted Nov 25, 1997·13 cites·1 claims
- 1360US5954339ADart game having an automatic playerFiled 1998·Granted Sep 21, 1999·19 cites·4 claims
- 1459US5275418ATargetYIU CHIH HAO·Filed 1993·Granted Jan 4, 1994·19 cites·8 claims
- 1558US7108620B1Game dart having ballastYIU CHIH HAO·Filed 2005·Granted Sep 19, 2006·4 cites·3 claims
- 1658US5531451AScoring system for dart gamesFiled 1995·Granted Jul 2, 1996·18 cites·1 claims
- 1757US6302809B1Noise reduction dart boardFiled 2000·Granted Oct 16, 2001·7 cites·5 claims
- 1857US5735527ADart board having a dart supportFiled 1996·Granted Apr 7, 1998·17 cites·2 claims
- 1953US5934677AScore indicating method for a dart gameFiled 1998·Granted Aug 10, 1999·15 cites·2 claims
- 2052US6053499ADart board having a functions locking buttonFiled 1999·Granted Apr 25, 2000·14 cites·4 claims
- 2151US5733210AApparatus for scoring table tennis gameFiled 1996·Granted Mar 31, 1998·20 cites·5 claims
- 2251US5613686ATarget board having a surrounding dart receiving configurationFiled 1996·Granted Mar 25, 1997·14 cites·2 claims
- 2349US6371486B1Hinge means for a dart board assemblyFiled 2000·Granted Apr 16, 2002·3 cites·4 claims
- 2448US2008111311A1Induction Frame for a DartboardYIU CHIH-HAO·Filed 2007·Application pending·0 cites
- 2547US6543779B2Dart boardFiled 2001·Granted Apr 8, 2003·2 cites·6 claims
- 2647US6499740B2Score ring structure for dart boardsFiled 2001·Granted Dec 31, 2002·2 cites·1 claims
- 2747US6450501B1DartboardFiled 2000·Granted Sep 17, 2002·2 cites·4 claims
- 2846US2007228659A1Unidirectional Coil Induction System for a DartboardYIU CHIH-HAO·Filed 2006·Application pending·0 cites
- 2946US2007228658A1Integrating Wave Sensing and Magnetic Induction Dartboard SystemYIU CHIH-HAO·Filed 2006·Application pending·0 cites
- 3045US6481412B1Target block structure of electronic dartboardFiled 2001·Granted Nov 19, 2002·1 cites·7 claims
- 3144US2007087873A1Apparatus and Method for Magnetizing a DartYIU CHIH-HAO·Filed 2006·Application pending·0 cites
- 3243US6017021ALiquid aerating assembly having a safety deviceFiled 1997·Granted Jan 25, 2000·11 cites·4 claims
- 3343US2003064837A1Device for detecting speed and position of ballsFiled 2001·Application pending·0 cites
- 3442US6798573B2Device for generating a 3-D image from two 2-D picturesFiled 2003·Granted Sep 28, 2004·0 cites·2 claims
- 3542US2004085860A1Position detecting and correcting device for timepieceFiled 2002·Application pending·0 cites
- 3641US2007080498A1Magnetic Induction DartYIU CHIH-HAO·Filed 2006·Application pending·0 cites
- 3739US5897116ADartboard having improved sliding segmentsFiled 1998·Granted Apr 27, 1999·7 cites·1 claims
- 3838US5601290ADouble bullseye for dart gameFiled 1995·Granted Feb 11, 1997·7 cites·2 claims
- 3938US2002109300A1Dart board assemblyFiled 2002·Application pending·0 cites
- 4038US2002158414A1Dart board display deviceFiled 2001·Application pending·0 cites
- 4138US2001048555A1Device for generating a 3-D image from two 2-D picturesFiled 2001·Application pending·0 cites
- 4236US2005104297A1Dart board having device for generating linesFiled 2003·Application pending·0 cites
- 4336US2005104296A1Dart board cabinet having toe line generatorFiled 2003·Application pending·0 cites
- 4436US2005107187A1Method for generating lines for dart gamesFiled 2003·Application pending·0 cites
- 4534US5884916ADartboard having a protective targetFiled 1997·Granted Mar 23, 1999·4 cites·3 claims
- 4634US5505459ATarget board for dart gameFiled 1995·Granted Apr 9, 1996·4 cites·2 claims
- 4733US6135457AZero zone structure for a dart boardFiled 1999·Granted Oct 24, 2000·3 cites·2 claims
- 4831US6375193B1DartboardFiled 1999·Granted Apr 23, 2002·2 cites·3 claims
- 4930US2005158176A1Water pumping and controlling deviceFiled 2004·Application pending·0 cites
- 5030US2005205273A1Method for driving electric percussion toolYIU CHIH H·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →