Inventor · disambiguated record
Huazhang Yu
Also filed as: YU HUAZHANG
210 granted patents·17 pending applications·296 citations·filing 2006–2022
99Inventor score
Top patents by PatentIndex Score
227 records- 0190US8321924B2Method for protecting software accessible over a network using a key deviceLU ZHOU·Filed 2007·Granted Nov 27, 2012·21 cites·13 claims
- 0288US8386795B2Information security device of Universal Serial Bus Human Interface Device class and data transmission method for sameFEITIAN TECHNOLOGIES CO LTD·Filed 2006·Granted Feb 26, 2013·18 cites·5 claims
- 0386US10979409B2Bluetooth device and working method thereofFEITIAN TECHNOLOGIES CO LTD·Filed 2018·Granted Apr 13, 2021·4 cites·20 claims
- 0486US10878404B2Method for operating an e-purseLU ZHOU·Filed 2011·Granted Dec 29, 2020·7 cites·16 claims
- 0586USD877090SKey deviceFEITIAN TECHNOLOGIES CO LTD·Filed 2018·Granted Mar 3, 2020·23 cites·1 claims
- 0686US8789166B2Verification method and system thereofLU ZHOU·Filed 2010·Granted Jul 22, 2014·10 cites·16 claims
- 0785US11863684B2Hardware wallet binding authorization method and apparatusFEITIAN TECHNOLOGIES CO LTD·Filed 2020·Granted Jan 2, 2024·2 cites·10 claims
- 0884US8443196B2Signing method, apparatus, and systemLU ZHOU·Filed 2010·Granted May 14, 2013·8 cites·20 claims
- 0984US8181869B2Method for customizing customer identifierLU ZHOU·Filed 2007·Granted May 22, 2012·10 cites·5 claims
- 1083US11568387B2Method and device for implementing password-free EMV contact transactionFEITIAN TECHNOLOGIES CO LTD·Filed 2019·Granted Jan 31, 2023·2 cites·20 claims
- 1182US12192376B2Method and apparatus for realizing secure signatureFEITIAN TECHNOLOGIES CO LTD·Filed 2021·Granted Jan 7, 2025·1 cites·20 claims
- 1281US8452672B2Method for managing the hardware deviceLU ZHOU·Filed 2007·Granted May 28, 2013·8 cites·15 claims
- 1379US11930118B2Authentication method and authentication deviceFEITIAN TECHNOLOGIES CO LTD·Filed 2021·Granted Mar 12, 2024·1 cites·20 claims
- 1479US11093934B2Method for realizing digital currency wallet by using hardware, and hardware walletFEITIAN TECHNOLOGIES CO LTD·Filed 2018·Granted Aug 17, 2021·3 cites·16 claims
- 1579US8443120B2Method for accessing multiple card slots and apparatus for the sameLU ZHOU·Filed 2010·Granted May 14, 2013·5 cites·12 claims
- 1678US8443432B2Method for calibrating a temperature float of a one time password token and a one time password token thereofLU ZHOU·Filed 2011·Granted May 14, 2013·3 cites·19 claims
- 1777US10977432B2Method for concluding electronic contracts and serverFEITIAN TECHNOLOGIES CO LTD·Filed 2017·Granted Apr 13, 2021·1 cites·22 claims
- 1877US10963867B2Hardware wallet and hardware wallet holder identity verification methodFEITIAN TECHNOLOGIES CO LTD·Filed 2017·Granted Mar 30, 2021·1 cites·20 claims
- 1977US10887103B2Operating method for push authentication system and deviceFEITIAN TECHNOLOGIES CO LTD·Filed 2016·Granted Jan 5, 2021·3 cites·20 claims
- 2077US10333712B2Activating mobile terminal token methodFEITIAN TECHNOLOGIES CO LTD·Filed 2015·Granted Jun 25, 2019·3 cites·19 claims
- 2177US9864599B2Firmware update method in two-chip solution for secure terminalFEITIAN TECHNOLOGIES CO LTD·Filed 2015·Granted Jan 9, 2018·3 cites·18 claims
- 2277US9378498B2Method for loading double e-walletsLU ZHOU·Filed 2010·Granted Jun 28, 2016·2 cites·12 claims
- 2377US8112627B2System for self-service recharging and method for the sameLU ZHOU·Filed 2008·Granted Feb 7, 2012·4 cites·17 claims
- 2476US9928197B2USB device and method thereof for recognizing host operating systemFEITIAN TECHNOLOGIES CO LTD·Filed 2013·Granted Mar 27, 2018·4 cites·14 claims
- 2576US9350728B2Method and system for generating and authorizing dynamic passwordFEITIAN TECHNOLOGIES CO LTD·Filed 2013·Granted May 24, 2016·4 cites·18 claims
- 2676US9178875B2Method for authenticating an OTP and an instrument thereforFEITIAN TECHNOLOGIES CO LTD·Filed 2012·Granted Nov 3, 2015·4 cites·18 claims
- 2776US9172536B2Audio communication based electronic signature system and method thereofLU ZHOU·Filed 2012·Granted Oct 27, 2015·4 cites·19 claims
- 2875US12143487B2Method for realizing off-line initialization of hardware wallet and equipment thereofFEITIAN TECHNOLOGIES CO LTD·Filed 2019·Granted Nov 12, 2024·2 cites·16 claims
- 2975US8504820B2Method for improving network application security and system thereofLU ZHOU·Filed 2010·Granted Aug 6, 2013·4 cites·18 claims
- 3075US8122172B2Portable information security deviceLU ZHOU·Filed 2007·Granted Feb 21, 2012·7 cites·7 claims
- 3174US7819329B2Method of activating a fingerprint identification process of a smart card according to a given condition and a device thereofFEITIAN TECHNOLOGIES CO LTD·Filed 2008·Granted Oct 26, 2010·4 cites·5 claims
- 3273US9948469B2Method for identifying audio deviceFEITIAN TECHNOLOGIES CO LTD·Filed 2015·Granted Apr 17, 2018·2 cites·20 claims
- 3373US8365262B2Method for automatically generating and filling in login information and system for the sameFEITIAN TECHNOLOGIES CO LTD·Filed 2008·Granted Jan 29, 2013·5 cites·23 claims
- 3472US9787393B2Method for realizing bluetooth-binding between smart key device and mobile deviceFEITIAN TECHNOLOGIES CO LTD·Filed 2016·Granted Oct 10, 2017·2 cites·20 claims
- 3572US9182967B2Method for safely downloading applicationFEITIAN TECHNOLOGIES CO LTD·Filed 2013·Granted Nov 10, 2015·3 cites·29 claims
- 3672US8862790B2Method for identifying version type of windows operating system on a host by a USB deviceLU ZHOU·Filed 2011·Granted Oct 14, 2014·3 cites·19 claims
- 3772US8184872B2One time password generating method and apparatusLU ZHOU·Filed 2008·Granted May 22, 2012·8 cites·20 claims
- 3871US8856521B2Methods and systems for performing secure operations on an encrypted fileLU ZHOU·Filed 2011·Granted Oct 7, 2014·3 cites·18 claims
- 3971US8522038B2Method for preventing unauthorized access to the computer system by using one-time passwordLU ZHOU·Filed 2007·Granted Aug 27, 2013·6 cites·4 claims
- 4071US8522024B2Authentication method, system, and deviceLU ZHOU·Filed 2010·Granted Aug 27, 2013·3 cites·18 claims
- 4170US8707049B2Authentication method and key deviceLU ZHOU·Filed 2008·Granted Apr 22, 2014·4 cites·18 claims
- 4269US10228875B2Data writing and reading methods for flashFEITIAN TECHNOLOGIES CO LTD·Filed 2014·Granted Mar 12, 2019·2 cites·29 claims
- 4369US10114953B2Method and system for upgrading firmware of a card readerLU ZHOU·Filed 2009·Granted Oct 30, 2018·4 cites·4 claims
- 4469US10070293B2Method for implementing bluetooth automatic return link in android systemFEITIAN TECHNOLOGIES CO LTD·Filed 2017·Granted Sep 4, 2018·1 cites·12 claims
- 4569US9027110B2System and method for communication between dynamic token and toolLU ZHOU·Filed 2012·Granted May 5, 2015·2 cites·19 claims
- 4669US8090959B2Method and apparatus for protecting .net programsLU ZHOU·Filed 2008·Granted Jan 3, 2012·4 cites·12 claims
- 4768US9851948B2Method for implementing precomputation of large number in embedded systemFEITIAN TECHNOLOGIES CO LTD·Filed 2014·Granted Dec 26, 2017·2 cites·15 claims
- 4868US9589160B2Working method for smart card readerFEITIAN TECHNOLOGIES CO LTD·Filed 2014·Granted Mar 7, 2017·2 cites·12 claims
- 4968US8739119B2Method for inserting code into .net programs and apparatus thereforLU ZHOU·Filed 2010·Granted May 27, 2014·2 cites·2 claims
- 5067US11271932B2Method for integrating authentication device and website, system and apparatusFEITIAN TECHNOLOGIES CO LTD·Filed 2018·Granted Mar 8, 2022·1 cites·18 claims
Showing the top 50 of 227 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →