Inventor
CHAKRABORTY SAURAV
IN47 patents
⚠️ This page may combine multiple inventors who share the name “CHAKRABORTY SAURAV”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TYFONE INC
36 patentsUS7961101B2Jun 14, 2011
Small RFID card with integrated inductive element
TYFONE INC84 citations98
US9215592B2Dec 15, 2015
Configurable personal digital identity device responsive to user interaction
TYFONE INC32 citations94
US9207650B2Dec 8, 2015
Configurable personal digital identity device responsive to user interaction with user authentication factor captured in mobile device
TYFONE INC28 citations94
US9183371B2Nov 10, 2015
Personal digital identity device with microphone
TYFONE INC23 citations93
US8814053B2Aug 26, 2014
Mobile payment device with small inductive device powered by a host device
TYFONE INC17 citations93
US10318855B2Jun 11, 2019
Computing device with NFC and active load modulation for mass transit ticketing
TYFONE INC3 citations84
US9904887B2Feb 27, 2018
Computing device with NFC and active load modulation
TYFONE INC4 citations84
US9489608B2Nov 8, 2016
Amplifier and transmission solution for 13.56MHz radio coupled to smartmx smartcard controller
TYFONE INC4 citations84
US9448543B2Sep 20, 2016
Configurable personal digital identity device with motion sensor responsive to user interaction
TYFONE INC6 citations84
US9436165B2Sep 6, 2016
Personal digital identity device with motion sensor responsive to user interaction
TYFONE INC6 citations84
US9319881B2Apr 19, 2016
Personal digital identity device with fingerprint sensor
TYFONE INC5 citations84
US8937549B2Jan 20, 2015
Enhanced integrated circuit with smartcard controller
TYFONE INC6 citations84
US8866614B2Oct 21, 2014
Active circuit for RFID
TYFONE INC5 citations84
US10476675B2Nov 12, 2019
Personal digital identity card device for fingerprint bound asymmetric crypto to access a kiosk
TYFONE INC2 citations73
US9781598B2Oct 3, 2017
Personal digital identity device with fingerprint sensor responsive to user interaction
TYFONE INC2 citations73
US9143938B2Sep 22, 2015
Personal digital identity device responsive to user interaction
TYFONE INC4 citations73
US10607129B2Mar 31, 2020
Sideband generating NFC apparatus to mimic load modulation
TYFONE INC0 citations63
US9520684B2Dec 13, 2016
MicroUSB lightning device with offset circuit board
TYFONE INC1 citations63
US9390359B2Jul 12, 2016
Mobile device with a contactless smartcard device and active load modulation
TYFONE INC1 citations63
US9231945B2Jan 5, 2016
Personal digital identity device with motion sensor
TYFONE INC2 citations63
US9166281B2Oct 20, 2015
Offset PCB lightning connector accessory device
TYFONE INC1 citations63
US9154500B2Oct 6, 2015
Personal digital identity device with microphone responsive to user interaction
TYFONE INC2 citations63
US9122965B2Sep 1, 2015
13.56 MHz enhancement circuit for smartcard controller
TYFONE INC0 citations63
US9117152B2Aug 25, 2015
13.56 MHz enhancement circuit for smartmx smartcard controller
TYFONE INC0 citations63
US9086689B2Jul 21, 2015
Configurable personal digital identity device with imager responsive to user interaction
TYFONE INC2 citations63
US9077794B2Jul 7, 2015
Lightning connector accessory device
TYFONE INC3 citations63
US10721071B2Jul 21, 2020
Wearable personal digital identity card for fingerprint bound access to a cloud service
TYFONE INC0 citations52
US10211988B2Feb 19, 2019
Personal digital identity card device for fingerprint bound asymmetric crypto to access merchant cloud services
TYFONE INC0 citations52
US9906365B2Feb 27, 2018
Personal digital identity device with fingerprint sensor and challenge-response key
TYFONE INC0 citations52
US9734319B2Aug 15, 2017
Configurable personal digital identity device with authentication using image received over radio link
TYFONE INC0 citations52
US9659295B2May 23, 2017
Personal digital identity device with near field and non near field radios for access control
TYFONE INC0 citations52
US9576281B2Feb 21, 2017
Configurable personal digital identity card with motion sensor responsive to user interaction
TYFONE INC0 citations52
US9563892B2Feb 7, 2017
Personal digital identity card with motion sensor responsive to user interaction
TYFONE INC0 citations52
US9483722B2Nov 1, 2016
Amplifier and transmission solution for 13.56MHz radio coupled to smartcard controller
TYFONE INC0 citations52
US9281633B2Mar 8, 2016
MicroUSB accessory device with antenna
TYFONE INC0 citations52
US9113329B2Aug 18, 2015
Mobile device learning mode for secure identification
TYFONE INC0 citations47
NARENDRA SIVA G
4 patentsUS8072331B2Dec 6, 2011
Mobile payment device
NARENDRA SIVA G91 citations99
US8451122B2May 28, 2013
Smartcard performance enhancement circuits and systems
NARENDRA SIVA G48 citations98
US8843062B2Sep 23, 2014
Coupling area enhancement apparatus, system, and method
NARENDRA SIVA G5 citations73
US8410936B2Apr 2, 2013
Contactless card that receives power from host device
NARENDRA SIVA G0 citations52
SIDEASSURE INC
4 patentsUS12302089B2May 13, 2025
Wearable identity device for fingerprint bound access to a cloud service
SIDEASSURE INC0 citations62
US11832095B2Nov 28, 2023
Wearable identity device for fingerprint bound access to a cloud service
SIDEASSURE INC0 citations62
US11523273B2Dec 6, 2022
Wearable identity device for fingerprint bound access to a cloud service
SIDEASSURE INC0 citations62
US11006271B2May 11, 2021
Wearable identity device for fingerprint bound access to a cloud service
SIDEASSURE INC0 citations62
ICASHE INC
3 patentsUS11694053B2Jul 4, 2023
Method and apparatus for transmitting data via NFC for mobile applications including mobile payments and ticketing
ICASHE INC0 citations73
US10949726B2Mar 16, 2021
Mobile phone with NFC apparatus that does not rely on power derived from an interrogating RF field
ICASHE INC0 citations73
US12147863B2Nov 19, 2024
Method and apparatus for transmitting data via NFC for mobile applications including mobile payments and ticketing
ICASHE INC1 citations62