Inventor · disambiguated record
Hongfeng Chai
Also filed as: CHAI HONGFENG
16 granted patents·10 pending applications·51 citations·filing 2005–2016
88Inventor score
Top patents by PatentIndex Score
26 records- 0186US7617152B2Bankcard transaction exchange systemCHINA UNIONPAY CO LTD·Filed 2005·Granted Nov 10, 2009·32 cites·24 claims
- 0280US9459937B2Method for using shared device in apparatus capable of operating two operating systemsCHINA UNIONPAY CO LTD·Filed 2014·Granted Oct 4, 2016·6 cites·20 claims
- 0375US9503309B2Ethernet communication system and method based on MMC/SD interfaceCHAI HONGFENG·Filed 2011·Granted Nov 22, 2016·6 cites·19 claims
- 0470US10095576B2Anomaly recovery method for virtual machine in distributed environmentCHINA UNIONPAY CO LTD·Filed 2015·Granted Oct 9, 2018·2 cites·7 claims
- 0564US8191058B2Computer processing system for realizing data upgrade and a data upgrading methodCHAI HONGFENG·Filed 2006·Granted May 29, 2012·4 cites·18 claims
- 0659US10528378B2System and method for load estimation of virtual machines in a cloud environment and serving nodeCHINA UNIONPAY CO LTD·Filed 2015·Granted Jan 7, 2020·1 cites·10 claims
- 0759US2016149918A1Secure information interaction method for electronic resources transferCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 0858US9712518B2Apparatus used for security information interactionCHINA UNIONPAY CO LTD·Filed 2014·Granted Jul 18, 2017·0 cites·10 claims
- 0955US2016055552A1Generating method, verifying method for electronic bill with anti-fake two dimension (2d) code and system for sameCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 1054US2014006247A1System, device and method for the interaction of security informationCHINA UNIONPAY CO LTD·Filed 2013·Application pending·0 cites
- 1154US2015310410A1System and method of monitoring for out-of-bounds mobile pos terminalsCHINA UNIONPAY CO LTD·Filed 2013·Application pending·0 cites
- 1248US9880597B2Method and terminal device for continuous power supply to external carrierCHINA UNIONPAY CO LTD·Filed 2014·Granted Jan 30, 2018·0 cites·12 claims
- 1348US2014172605A1Safety closed-loop payment system and methodCHINA UNI ONPAY CO LTD·Filed 2012·Application pending·0 cites
- 1447US10169572B2Starting an application on a mobile deviceCHINA UNIONPAY CO LTD·Filed 2014·Granted Jan 1, 2019·0 cites·12 claims
- 1546US2016227012A1Switching device and method for automatically connecting to nfc chip and switching security elementCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 1645US10678577B2Method for implementing virtual secure elementCHINA UNIONPAY CO LTD·Filed 2014·Granted Jun 9, 2020·0 cites·3 claims
- 1745US9756044B2Establishment of communication connection between mobile device and secure elementCHINA UNIONPAY CO LTD·Filed 2014·Granted Sep 5, 2017·0 cites·14 claims
- 1845US2016140342A1Method for indicating operating environment of mobile device and mobile device capable of indicating operating environmentCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 1945US2016119786A1Mobile device-based authentication method and authentication apparatusCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 2045US2018089690A1Mobile payment device and mobile payment systemCHINA UNIONPAY CO LTD·Filed 2016·Application pending·0 cites
- 2144US10120672B2Method for offline updating virtual machine imagesCHINA UNIONPAY CO LTD·Filed 2014·Granted Nov 6, 2018·0 cites·4 claims
- 2244US2016112874A1Secure element operating system and methodCHINA UNIONPAY CO LTD·Filed 2014·Application pending·0 cites
- 2343US10623530B2Device for supporting communication between multiple types of safety carriers and communication method thereforCHINA UNIONPAY CO LTD·Filed 2014·Granted Apr 14, 2020·0 cites·19 claims
- 2443US9985990B2Security information interaction system, device and method based on active command of secure carrierCHINA UNIONPAY CO LTD·Filed 2014·Granted May 29, 2018·0 cites·8 claims
- 2542US10445746B2Method for checking compliance of payment application in virtualized environmentCHINA UNIONPAY CO LTD·Filed 2014·Granted Oct 15, 2019·0 cites·20 claims
- 2640US9697513B2User terminal and payment systemCHAI HONGFENG·Filed 2012·Granted Jul 4, 2017·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →