Inventor · disambiguated record
Huo-Lu Tsai
Also filed as: TSAI HUO L · TSAI HUO-LU
36 granted patents·21 pending applications·712 citations·filing 1987–2013
98Inventor score
Files withTSAI HUO-LU22SUNREX TECHNOLOGY CORP10COMPLEX INSTR TECHNOLOGY CORP2HUO LU TSAI2JING MOLD ENTPR CO LTD1
Top patents by PatentIndex Score
57 records- 0198US7608792B1Membrane keyboard/keypad with arrangement for uniformly lighting keys from backgroundSUNREX TECHNOLOGY CORP·Filed 2008·Granted Oct 27, 2009·70 cites·10 claims
- 0297US7847204B2Multicolor transparent computer keyboardSUNREX TECHNOLOGY CORP·Filed 2007·Granted Dec 7, 2010·75 cites·5 claims
- 0397US7057125B1Backlighting keyboardTSAI HUO-LU·Filed 2005·Granted Jun 6, 2006·48 cites·11 claims
- 0494US8247714B2Back lighted membrane keyboard with components being secured together by subjecting to ultrasonic weldingTSAI HUO-LU·Filed 2010·Granted Aug 21, 2012·22 cites·6 claims
- 0592US5878872AKey switch assembly for a computer keyboardFiled 1998·Granted Mar 9, 1999·74 cites·4 claims
- 0685USD399838SKeyboardTSAI HUO-LU·Filed 1997·Granted Oct 20, 1998·29 cites·1 claims
- 0784US6538642B2Portable input apparatusFiled 2001·Granted Mar 25, 2003·39 cites·9 claims
- 0882US7565180B2Dial system for a steering wheel of an automobileSUNREX TECHNOLOGY CORP·Filed 2005·Granted Jul 21, 2009·9 cites·2 claims
- 0981US7939773B2Illuminated keyboard with a light guide plateTINGO MOLD ELECTRONICS TECHNOLOGY SHEN ZHEN CO LTD·Filed 2008·Granted May 10, 2011·14 cites·6 claims
- 1080US7548770B2Dial system for a steering wheel of an automobileSUNREX TECHNOLOGY CORP·Filed 2006·Granted Jun 16, 2009·7 cites·1 claims
- 1178US6496365B2Input apparatus for wireless communications with a portable computerized apparatusFiled 2001·Granted Dec 17, 2002·26 cites·15 claims
- 1278US5829579AKey switch assembly for a computer keyboardFiled 1997·Granted Nov 3, 1998·32 cites·13 claims
- 1376US6958458B1Key switch device having high drawabilityTSAI HUO-LU·Filed 2004·Granted Oct 25, 2005·19 cites·2 claims
- 1471US6156986AComputer key switchJING MOLD ENTPR CO LTD·Filed 1999·Granted Dec 5, 2000·27 cites·3 claims
- 1570US6567676B1Dial communication system of a steering wheel of an automobileCOMPLEX INSTR TECHNOLOGY CORP·Filed 2000·Granted May 20, 2003·19 cites·5 claims
- 1669US7897885B2Digitizer pen capable of utilizing solar powerTSAI HUO-LU·Filed 2007·Granted Mar 1, 2011·4 cites·18 claims
- 1768US6020566ADevice of balancing lever in a multiplicative keySUNREX TECHNOLOGY CORP·Filed 1999·Granted Feb 1, 2000·21 cites·3 claims
- 1868US5964341AKey switch assembly for a computer keyboardFiled 1998·Granted Oct 12, 1999·23 cites·6 claims
- 1966US6339700B1Dial device for steering wheel of an automobileCOMPLEX INSTR TECHNOLOGY CORP·Filed 2000·Granted Jan 15, 2002·15 cites·6 claims
- 2066USD390549SKeyboardTSAI HUO-LU·Filed 1997·Granted Feb 10, 1998·13 cites·1 claims
- 2164USD389137SKeyboardTSAI HUO-LU·Filed 1996·Granted Jan 13, 1998·12 cites·1 claims
- 2262US5994655AKey switch assembly for a computer keyboardFiled 1999·Granted Nov 30, 1999·18 cites·9 claims
- 2362US2010000426A1Apparatus for printing characters on a computer keyboard and method thereofSUNREX TECHNOLOGY CORP·Filed 2009·Application pending·0 cites
- 2461US5767468AKey switch asembly for a computer keyboardFiled 1997·Granted Jun 16, 1998·18 cites·14 claims
- 2560US6906272B1Key switch device having high drawabilityFiled 2004·Granted Jun 14, 2005·9 cites·3 claims
- 2660USD433682SWireless keyboardTSAI HUO-LU·Filed 1999·Granted Nov 14, 2000·10 cites·1 claims
- 2759US7969718B2Computer keyboard with transparent covers for protecting key charactersSUNREX TECHNOLOGY CORP·Filed 2009·Granted Jun 28, 2011·1 cites·6 claims
- 2858US7301112B1Illuminating keyboardTSAI HUO-LU·Filed 2006·Granted Nov 27, 2007·2 cites·10 claims
- 2957US7304860B2Printed circuit board with thin film switches for a keyboardTSAI HUO-LU·Filed 2006·Granted Dec 4, 2007·2 cites·3 claims
- 3055US5020215AMethod of an apparatus for manufacturing a keyboardTSAI HUO LU·Filed 1990·Granted Jun 4, 1991·16 cites·5 claims
- 3151USD427596SMulti-media home computer terminalTSAI HUO-LU·Filed 1999·Granted Jul 4, 2000·7 cites·1 claims
- 3250US6805507B2Keyboard deviceFiled 2003·Granted Oct 19, 2004·5 cites·4 claims
- 3350US2010321298A1Keyboard and touchpad combinationSUNREX TECHNOLOGY CORP·Filed 2009·Application pending·0 cites
- 3449US4831719AManufacturing method of a keyboardTSAI HUO L·Filed 1987·Granted May 23, 1989·14 cites·6 claims
- 3547US9035885B2Optical input apparatusSUNREX TECHNOLOGY CORP·Filed 2013·Granted May 19, 2015·0 cites·1 claims
- 3647US2003215087A1Mobile phone hands-free kit with a sound-pickup device Mobile phone hands-free kit with a sound-pickup deviceFiled 2002·Application pending·0 cites
- 3747US2006119569A1Wireless instruction device for a computer-based visual presentation systemTSAI HUO-LU·Filed 2004·Application pending·0 cites
- 3846US2010253551A1Keyboard with paint schemeSUNREX TECHNOLOGY CORP·Filed 2009·Application pending·0 cites
- 3946US2009040185A1Antenna module for a display device that incorporates an electromagnetic digitizing tablet functionTSAI HUO-LU·Filed 2007·Application pending·0 cites
- 4046US2003153268A1Number dialing kit for mobile phones that are capable of infrared data transmissionFiled 2002·Application pending·0 cites
- 4145US7280369B2Multi-layer printed circuit board for a keyboardTSAI HUO-LU·Filed 2006·Granted Oct 9, 2007·0 cites·14 claims
- 4244US2007257882A1Magnetic induction cursor input systemTSAI HUO-LU·Filed 2006·Application pending·0 cites
- 4344US2005024321A1Handheld remote instruction device for a computer-based visual presentation systemFiled 2003·Application pending·0 cites
- 4444US2005024329A1Method and device for cursor controlFiled 2003·Application pending·0 cites
- 4544US2007222757A1Display for statuses of keys on a wireless keyboardTSAI HUO-LU·Filed 2006·Application pending·0 cites
- 4643US5973281AKey switch assembly for computer keyboardFiled 1998·Granted Oct 26, 1999·8 cites·2 claims
- 4743US2003184515A1Computer user input assembly with wired and wireless transmission capabilityFiled 2002·Application pending·0 cites
- 4843US2014132516A1Optical keyboardTSAI HUO-LU·Filed 2012·Application pending·0 cites
- 4942US2007163865A1Thin film circuit board of keyboardTSAI HUO-LU·Filed 2006·Application pending·0 cites
- 5042US2003151594A1Mouse with an optical encoder wheel for a computerFiled 2002·Application pending·0 cites
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →