Inventor · disambiguated record
Afshin Rezayee
Also filed as: REZAYEE AFSHIN
65 granted patents·9 pending applications·394 citations·filing 2007–2024
99Inventor score
Top patents by PatentIndex Score
74 records- 0196US9665870B1Multi-input tamper detection systemSQUARE INC·Filed 2016·Granted May 30, 2017·29 cites·30 claims
- 0296US9646299B1Dynamic adjustment of near field communication tuning parametersSQUARE INC·Filed 2015·Granted May 9, 2017·22 cites·30 claims
- 0395US11328283B2Systems and methods for performing payment transactionsBLOCK INC·Filed 2021·Granted May 10, 2022·3 cites·23 claims
- 0495US11182770B1Systems and methods for sensing locations of near field communication devicesSQUARE INC·Filed 2018·Granted Nov 23, 2021·17 cites·25 claims
- 0595US10861003B1Near field communication device coupling systemSQUARE INC·Filed 2015·Granted Dec 8, 2020·16 cites·24 claims
- 0695US10474846B1Processor power supply glitch detectionSQUARE INC·Filed 2017·Granted Nov 12, 2019·24 cites·30 claims
- 0795US10255603B1Processor power supply glitch mitigationSQUARE INC·Filed 2017·Granted Apr 9, 2019·22 cites·35 claims
- 0894US10198727B1Modulation of a near-field communication signalSQUARE INC·Filed 2015·Granted Feb 5, 2019·19 cites·25 claims
- 0994US9818004B1Anti-tamper circuit with internal local oscillatorSQUARE INC·Filed 2016·Granted Nov 14, 2017·24 cites·30 claims
- 1093US10175118B1Systems and methods for measuring temperatureSQUARE INC·Filed 2016·Granted Jan 8, 2019·8 cites·24 claims
- 1192US11783317B2Transaction processing based on device locationBLOCK INC·Filed 2021·Granted Oct 10, 2023·2 cites·20 claims
- 1292US10621590B2Line-based chip card tamper detectionSQUARE INC·Filed 2017·Granted Apr 14, 2020·6 cites·26 claims
- 1392US10430784B1Multi-layer antennaSQUARE INC·Filed 2017·Granted Oct 1, 2019·22 cites·26 claims
- 1491US10438190B2Devices with on-board physically unclonable functionsSQUARE INC·Filed 2018·Granted Oct 8, 2019·5 cites·25 claims
- 1591US10263793B2Devices with modifiable physically unclonable functionsSQUARE INC·Filed 2018·Granted Apr 16, 2019·10 cites·25 claims
- 1691US10235667B2Device-embedded transaction chipSQUARE INC·Filed 2018·Granted Mar 19, 2019·5 cites·20 claims
- 1791US9846796B2Systems and methods using load modulation for wireless communicationSQUARE INC·Filed 2016·Granted Dec 19, 2017·6 cites·20 claims
- 1891US9799180B1Multiplexed tamper detection systemSQUARE INC·Filed 2016·Granted Oct 24, 2017·14 cites·28 claims
- 1991US9692417B1Transition glitch suppression circuitSQUARE INC·Filed 2016·Granted Jun 27, 2017·11 cites·25 claims
- 2089US11893581B1Tokenization for payment devicesSQUARE INC·Filed 2018·Granted Feb 6, 2024·5 cites·31 claims
- 2189US9870558B1Device-embedded transaction chipSQUARE INC·Filed 2017·Granted Jan 16, 2018·7 cites·12 claims
- 2288US11783312B2Systems and methods for performing payment transactionsBLOCK INC·Filed 2022·Granted Oct 10, 2023·1 cites·22 claims
- 2388US11301840B1Systems and methods for provisioning point of sale terminalsBLOCK INC·Filed 2015·Granted Apr 12, 2022·7 cites·6 claims
- 2488US10068223B1Device-embedded transaction chipSQUARE INC·Filed 2017·Granted Sep 4, 2018·6 cites·26 claims
- 2587US9917577B1Brown-out detector and power-on-reset circuitSQUARE INC·Filed 2016·Granted Mar 13, 2018·7 cites·24 claims
- 2687US8472560B2Apparatus and method for detecting RFID signalsREZAYEE AFSHIN·Filed 2010·Granted Jun 25, 2013·13 cites·17 claims
- 2786US10410202B1Expedited booting with brownout monitoringSQUARE INC·Filed 2016·Granted Sep 10, 2019·8 cites·25 claims
- 2886US9569648B2Apparatus and methods for wireless communication using load modulationSQUARE INC·Filed 2015·Granted Feb 14, 2017·4 cites·30 claims
- 2986US2025069059A1Device security with physically unclonable functionsBLOCK INC·Filed 2024·Application pending·0 cites
- 3085US11715085B2Systems and methods for performing payment transactionsBLOCK INC·Filed 2021·Granted Aug 1, 2023·1 cites·17 claims
- 3185US11423391B2Devices with on-board physically unclonable functionsBLOCK INC·Filed 2019·Granted Aug 23, 2022·2 cites·20 claims
- 3285US10496975B2Point of sale system with secure and unsecure modesSQUARE INC·Filed 2015·Granted Dec 3, 2019·4 cites·9 claims
- 3385US2025156877A1Tamper detection using electronic device monitoring systemsBLOCK INC·Filed 2024·Application pending·0 cites
- 3484US11763285B2Wearable payment device with tunable antennaBLOCK INC·Filed 2021·Granted Sep 19, 2023·1 cites·22 claims
- 3584US9959536B1Current-mode hysteresis comparatorSQUARE INC·Filed 2016·Granted May 1, 2018·6 cites·28 claims
- 3683US12141786B2Device security with physically unclonable functionsBLOCK INC·Filed 2023·Granted Nov 12, 2024·0 cites·20 claims
- 3783US10438189B2Server-enabled chip card interface tamper detectionSQUARE INC·Filed 2017·Granted Oct 8, 2019·3 cites·30 claims
- 3882US11386419B2Device security with physically unclonable functionsBLOCK INC·Filed 2020·Granted Jul 12, 2022·1 cites·26 claims
- 3981US12223507B2Line-based chip card tamper detectionBLOCK INC·Filed 2023·Granted Feb 11, 2025·0 cites·20 claims
- 4081US11113698B2Line-based chip card tamper detectionSQUARE INC·Filed 2020·Granted Sep 7, 2021·1 cites·20 claims
- 4181US9886596B1Systems and methods for secure processing with embedded cryptographic unitSQUARE INC·Filed 2015·Granted Feb 6, 2018·3 cites·20 claims
- 4281US9070062B2Streamlined apparatus and methods for RFID communicationREZAYEE AFSHIN·Filed 2012·Granted Jun 30, 2015·5 cites·11 claims
- 4380US12182790B2Systems and methods for performing transactionsBLOCK INC·Filed 2023·Granted Dec 31, 2024·0 cites·20 claims
- 4480US9941884B2AC coupled level shifting circuitSQUARE INC·Filed 2016·Granted Apr 10, 2018·4 cites·25 claims
- 4579US12062035B2Controlling reader transmissions based on device resonant frequencyBLOCK INC·Filed 2023·Granted Aug 13, 2024·0 cites·20 claims
- 4679US9135472B2Systems and methods for secure processing with embedded cryptographic unitKILI TECHNOLOGY CORP·Filed 2013·Granted Sep 15, 2015·7 cites·39 claims
- 4779US8879618B2Decision feedback equalizer and transceiverABDALLA MOHAMED·Filed 2011·Granted Nov 4, 2014·12 cites·16 claims
- 4879US2024362617A1Selecting transmit antenna based on device locationBLOCK INC·Filed 2024·Application pending·0 cites
- 4978US10430783B2Transmit phase detection circuitSQUARE INC·Filed 2016·Granted Oct 1, 2019·2 cites·30 claims
- 5078US9300665B2Credential authentication methods and systemsRONDA TROY JACOB·Filed 2012·Granted Mar 29, 2016·7 cites·24 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Afshin Rezayee files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →