Inventor · disambiguated record
Hua-Tang Liu
Also filed as: LIU HUA · LIU HUA-TANG
41 granted patents·18 pending applications·339 citations·filing 2001–2025
97Inventor score
Files withSINTAI OPTICAL SHENZHEN CO LTD31ASIA OPTICAL CO INC15GLOBAL TECH INC3LIU HUA-TANG3APPLIED OPTOELECTRONICS INC1
Top patents by PatentIndex Score
59 records- 0195USD955242SRangefinderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Jun 21, 2022·29 cites·1 claims
- 0292US11796315B2Optical device and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2021·Granted Oct 24, 2023·2 cites·17 claims
- 0391USD957275SRangefinderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Jul 12, 2022·18 cites·1 claims
- 0490US9557500B1Multi-channel optical transmitter-receiver assemblyGLOBAL TECH INC·Filed 2016·Granted Jan 31, 2017·12 cites·7 claims
- 0590US7471377B2Laser distance measuring system with a shutter mechanismASIA OPTICAL CO INC·Filed 2007·Granted Dec 30, 2008·44 cites·6 claims
- 0687US8018580B2Laser range finding device and distance measurement method thereofASIA OPTICAL CO INC·Filed 2010·Granted Sep 13, 2011·12 cites·27 claims
- 0786USD980725SRangefinderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Mar 14, 2023·13 cites·1 claims
- 0886USD611848SLaser distance meterASIA OPTICAL CO INC·Filed 2009·Granted Mar 16, 2010·43 cites·1 claims
- 0985US11493828B2Range finderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Nov 8, 2022·2 cites·20 claims
- 1084US7304727B2Laser distance-measuring deviceASIA OPTICAL CO INC·Filed 2005·Granted Dec 4, 2007·24 cites·12 claims
- 1180US10520717B2Binocular capable of measuring distance and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2017·Granted Dec 31, 2019·4 cites·20 claims
- 1279US9030651B2Laser range finding device and distance measurement method thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2013·Granted May 12, 2015·7 cites·16 claims
- 1379USD539680SLaser distance meterASIA OPTICAL CO INC·Filed 2005·Granted Apr 3, 2007·28 cites·1 claims
- 1478US10234283B2Binoculars rangefinderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2015·Granted Mar 19, 2019·6 cites·10 claims
- 1578US7395604B2Laser level with temperature control device and temperature control method thereofASIA OPTICAL CO INC·Filed 2006·Granted Jul 8, 2008·13 cites·20 claims
- 1677US11604064B2Range finder and lens assembly for display thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Mar 14, 2023·1 cites·20 claims
- 1777US7228635B2Laser tilt apparatus and the method thereofASIA OPTICAL CO INC·Filed 2005·Granted Jun 12, 2007·13 cites·15 claims
- 1876USD1003332SOptical deviceSINTAI OPTICAL SHENZHEN CO LTD·Filed 2021·Granted Oct 31, 2023·8 cites·1 claims
- 1975US9804352B2Coaxial transmitter optical subassembly (TOSA) with an optical fiber coupling receptacleAPPLIED OPTOELECTRONICS INC·Filed 2016·Granted Oct 31, 2017·3 cites·20 claims
- 2071US10704903B2Binocular capable of measuring distance and prism and light transmitter module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2017·Granted Jul 7, 2020·2 cites·20 claims
- 2170US7242540B1Axis-adjustable optical device and optical instrument utilizing the sameASIA OPTICAL CO INC·Filed 2006·Granted Jul 10, 2007·6 cites·14 claims
- 2268US12152908B2Range finder and lens assembly for display thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2023·Granted Nov 26, 2024·0 cites·19 claims
- 2367US8970824B2RangefinderCHANG ZHANG-MING·Filed 2012·Granted Mar 3, 2015·6 cites·9 claims
- 2467USD579805SLaser ranging finderASIA OPTICAL CO INC·Filed 2008·Granted Nov 4, 2008·17 cites·1 claims
- 2566US7373724B2Laser level with improved leveling adjustabilityASIA OPTICAL CO INC·Filed 2006·Granted May 20, 2008·5 cites·15 claims
- 2666US2025271563A1Methods of locating a target object in a ranging device, and ranging devices thereofASIA OPTICAL CO INC·Filed 2024·Application pending·0 cites
- 2763US2025076039A1Ranging telescopeSINTAI OPTICAL SHENZHEN CO LTD·Filed 2024·Application pending·0 cites
- 2858US2024377605A1Optical system and adjusting device thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2024·Application pending·0 cites
- 2957US6909551B1Side by side laser level deviceASIA OPTICAL CO INC·Filed 2004·Granted Jun 21, 2005·5 cites·23 claims
- 3056US12228714B2Optical systemSINTAI OPTICAL SHENZHEN CO LTD·Filed 2022·Granted Feb 18, 2025·0 cites·18 claims
- 3156US11536932B2Optical lens assemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Granted Dec 27, 2022·0 cites·20 claims
- 3255US6501539B2High precision laser range finder with an automatic peak control loopASIA OPTICAL CO INC·Filed 2001·Granted Dec 31, 2002·13 cites·8 claims
- 3355US2024019672A1Optical device and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2023·Application pending·0 cites
- 3455US2024426980A1Lighting module and optical apparatus thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2024·Application pending·0 cites
- 3555US2024019680A1Optical device and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2023·Application pending·0 cites
- 3654US2024231069A9Optical device and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2023·Application pending·0 cites
- 3752US11953705B2Optical device and prism module thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2021·Granted Apr 9, 2024·0 cites·16 claims
- 3850US12352532B2Aiming devices and methods thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2024·Granted Jul 8, 2025·0 cites·20 claims
- 3950US8169598B2RangefinderHUANG SING-HUNG·Filed 2010·Granted May 1, 2012·2 cites·4 claims
- 4050US7800737B2Laser range finding device and distance measurement method thereofASIA OPTICAL CO INC·Filed 2008·Granted Sep 21, 2010·1 cites·16 claims
- 4150US2021041671A1Optical Lens AssemblySINTAI OPTICAL SHENZHEN CO LTD·Filed 2020·Application pending·0 cites
- 4247US9939595B2Multi-channel laser device with fiber arrayGLOBAL TECH INC·Filed 2016·Granted Apr 10, 2018·0 cites·4 claims
- 4347US9746589B2Range finder and prism assembly thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2014·Granted Aug 29, 2017·0 cites·20 claims
- 4447US2025266716A1Wireless charging rangefinderASIA OPTICAL CO INC·Filed 2025·Application pending·0 cites
- 4545US10520792B2Range finderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2018·Granted Dec 31, 2019·0 cites·18 claims
- 4645US2020182612A1Range FinderSINTAI OPTICAL SHENZHEN CO LTD·Filed 2019·Application pending·0 cites
- 4745US2011299061A1Laser range finding device and distance measurement method thereofLUO YIN-LONG·Filed 2011·Application pending·0 cites
- 4840US2017038203A1Self-propelled device and distance detector thereofSINTAI OPTICAL SHENZHEN CO LTD·Filed 2016·Application pending·0 cites
- 4940US2014320844A1Range FinderASIA OPTICAL INT LTD·Filed 2014·Application pending·0 cites
- 5040US2015049327A1Optical SystemSINTAI OPTICAL SHENZHEN CO LTD·Filed 2014·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →