Inventor
LAMBA KARTIK
US39 patents
⚠️ This page may combine multiple inventors who share the name “LAMBA KARTIK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SQUARE INC
24 patentsUS9396368B1Jul 19, 2016
Tuning a NFC antenna of a device
SQUARE INC48 citations98
US9286494B1Mar 15, 2016
Card reader having discriminator contact
SQUARE INC46 citations97
US11080674B1Aug 3, 2021
Point of sale system
SQUARE INC20 citations94
US9936337B2Apr 3, 2018
Tuning a NFC antenna of a device
SQUARE INC13 citations92
US9652641B2May 16, 2017
Card reader of a point-of-sale system
SQUARE INC19 citations92
US9507972B2Nov 29, 2016
Wireless card reader with contactless and contact card interfaces
SQUARE INC15 citations92
US9424445B2Aug 23, 2016
Card reader having discriminator contact
SQUARE INC14 citations92
US9390297B2Jul 12, 2016
Wireless card reader with contactless and contact card interfaces
SQUARE INC17 citations92
US10692059B1Jun 23, 2020
Selecting a financial account associated with a proxy object based on fund availability
SQUARE INC25 citations90
US9224141B1Dec 29, 2015
Encoding a magnetic stripe of a card with data of multiple cards
SQUARE INC42 citations90
US11537803B2Dec 27, 2022
Point of sale system
SQUARE INC4 citations84
US9870557B2Jan 16, 2018
Payment object reader device with multiple types of reader circuitry
SQUARE INC5 citations84
US9781549B2Oct 3, 2017
Tuning a NFC antenna of a device
SQUARE INC10 citations84
US9449203B2Sep 20, 2016
Card reader with power efficient architecture that includes a power supply and a wake-up circuit
SQUARE INC7 citations84
US9135545B1Sep 15, 2015
Magnetic stripe emulator for persistently emulating magnetic stripe data
SQUARE INC12 citations84
US9858603B2Jan 2, 2018
Card reader with power efficient architecture that includes a wake-up circuit
SQUARE INC6 citations83
US9760743B2Sep 12, 2017
Card reader having discriminator contact
SQUARE INC11 citations83
US11238426B1Feb 1, 2022
Associating an account with a card
SQUARE INC1 citations73
US10667106B2May 26, 2020
Tuning a NFC antenna of a device
SQUARE INC2 citations73
US10007813B2Jun 26, 2018
Card reader with passive ID circuit
SQUARE INC3 citations72
US9704150B2Jul 11, 2017
Automatic gain control sub-circuit management
SQUARE INC3 citations72
US9595033B2Mar 14, 2017
Method of transmitting information from efficient communication protocol card
SQUARE INC4 citations72
US9374176B2Jun 21, 2016
Automatic gain control sub-circuit management
SQUARE INC2 citations62
US10140481B2Nov 27, 2018
Card reader with power efficient architecture that includes a power supply and a wake-up circuit
SQUARE INC0 citations52
LAMBA KARTIK
6 patentsUS9224142B2Dec 29, 2015
Card reader with power efficient architecture that includes a power supply and a wake up circuit
LAMBA KARTIK23 citations92
US9262757B2Feb 16, 2016
Method of transmitting information from a card reader with a power supply and wake-up circuit to a mobile device
LAMBA KARTIK9 citations83
US9495676B2Nov 15, 2016
Method of transmitting information from a power efficient card to a mobile device
LAMBA KARTIK8 citations82
US9286635B2Mar 15, 2016
Method of transmitting information from efficient communication protocol card readers to mobile devices
LAMBA KARTIK11 citations82
US9262777B2Feb 16, 2016
Card reader with power efficient architecture that includes a wake-up circuit
LAMBA KARTIK12 citations82
US9164561B2Oct 20, 2015
Method for sourcing current using an audio jack
LAMBA KARTIK1 citations52
BLOCK INC
6 patentsUS11836566B2Dec 5, 2023
Point of sale system
BLOCK INC5 citations85
US11599863B1Mar 7, 2023
Selection of a financial account associated with a proxy object
BLOCK INC2 citations68
US12248922B1Mar 11, 2025
Associating an account with a card
BLOCK INC0 citations62
US11966805B2Apr 23, 2024
Point of sale system
BLOCK INC0 citations62
US11954549B2Apr 9, 2024
Point of sale system
BLOCK INC0 citations62
US12361396B2Jul 15, 2025
Selection of a financial account associated with a proxy object
BLOCK INC0 citations58
BABU AMISH
3 patentsUS9063737B2Jun 23, 2015
Wireless card reader with one or more card interfaces
BABU AMISH46 citations97
US9058172B2Jun 16, 2015
Method for conserving power using a wireless card reader
BABU AMISH16 citations92
US9305314B2Apr 5, 2016
Methods of transmitting information to mobile devices using cost effective card readers
BABU AMISH9 citations82