Assignee
IMPINJ INC
US324 patents
Top patents by PatentIndex Score
US7283037B2Oct 16, 2007
RFID tags adjusting to different regulatory environments, and RFID readers to so adjust them and methods
IMPINJ INC109 citations99
USD546821SJul 17, 2007
Radio frequency identification tag antenna assembly
IMPINJ INC196 citations99
US7026935B2Apr 11, 2006
Method and apparatus to configure an RFID system to be adaptable to a plurality of environmental conditions
IMPINJ INC274 citations99
US9818084B1Nov 14, 2017
RFID loss-prevention based on transition risk
IMPINJ INC37 citations98
USD620484SJul 27, 2010
RFID tag antenna
IMPINJ INC50 citations98
USD611037SMar 2, 2010
RFID tag antenna
IMPINJ INC49 citations98
US7561866B2Jul 14, 2009
RFID tags with power rectifiers that have bias
IMPINJ INC68 citations98
US7245213B1Jul 17, 2007
RFID readers and RFID tags exchanging encrypted password
IMPINJ INC96 citations98
USD546819SJul 17, 2007
Radio frequency identification tag antenna assembly
IMPINJ INC61 citations98
US7215251B2May 8, 2007
Method and apparatus for controlled persistent ID flag for RFID applications
IMPINJ INC62 citations98
US7116240B2Oct 3, 2006
Method and apparatus for controlled persistent ID flag for RFID applications
IMPINJ INC72 citations98
US7973645B1Jul 5, 2011
RFID reader devices and methods thereof
IMPINJ INC65 citations97
US9792472B1Oct 17, 2017
Tag-handle-based authentication of RFID readers
IMPINJ INC50 citations96
USD620928SAug 3, 2010
RFID tag antenna
IMPINJ INC42 citations96
USD617320SJun 8, 2010
RFID tag antenna
IMPINJ INC42 citations96
USD578114SOct 7, 2008
Radio frequency indentification tag antenna assembly
IMPINJ INC37 citations96
US7423539B2Sep 9, 2008
RFID tags combining signals received from multiple RF ports
IMPINJ INC44 citations96
US7400255B2Jul 15, 2008
Wireless functional testing of RFID tag
IMPINJ INC53 citations96
USD563397SMar 4, 2008
Radio frequency identification tag antenna assembly
IMPINJ INC36 citations96
USD562810SFeb 26, 2008
Radio frequency identification tag antenna assembly
IMPINJ INC35 citations96
US7304579B2Dec 4, 2007
RFID reader to select code modules
IMPINJ INC51 citations96
US7283390B2Oct 16, 2007
Hybrid non-volatile memory
IMPINJ INC45 citations96
US7253719B2Aug 7, 2007
Multi-oscillator clock signals
IMPINJ INC54 citations96
USD548225SAug 7, 2007
Radio frequency identification tag antenna assembly
IMPINJ INC50 citations96
USD547754SJul 31, 2007
Radio frequency identification tag antenna assembly
IMPINJ INC50 citations96
US7187237B1Mar 6, 2007
Use of analog-valued floating-gate transistors for parallel and serial signal processing
IMPINJ INC30 citations96
US7120550B2Oct 10, 2006
Radio-frequency identification circuit oscillator calibration
IMPINJ INC47 citations96
US7061324B2Jun 13, 2006
Use of analog-valued floating-gate transistors for parallel and serial signal processing
IMPINJ INC30 citations96
US7038544B2May 2, 2006
Use of analog-valued floating-gate transistors for parallel and serial signal processing
IMPINJ INC39 citations96
US6965142B2Nov 15, 2005
Floating-gate semiconductor structures
IMPINJ INC51 citations96
US6842327B1Jan 11, 2005
High-voltage CMOS-compatible capacitors
IMPINJ INC43 citations96
US10819319B1Oct 27, 2020
Level shifter circuit with self-gated transition amplifier
IMPINJ INC47 citations95
US7482251B1Jan 27, 2009
Etch before grind for semiconductor die singulation
IMPINJ INC52 citations95
US6950342B2Sep 27, 2005
Differential floating gate nonvolatile memories
IMPINJ INC104 citations95
US11361174B1Jun 14, 2022
Enhanced RFID tag authentication
IMPINJ INC19 citations94
US11244282B1Feb 8, 2022
RFID loss-prevention based on transition risk
IMPINJ INC10 citations94
US11232340B1Jan 25, 2022
Digital identities for physical items
IMPINJ INC13 citations94
US11017349B1May 25, 2021
RFID loss-prevention based on transition risk
IMPINJ INC10 citations94
US10929734B1Feb 23, 2021
RFID tag clock frequency reduction during tuning
IMPINJ INC13 citations94
US10878685B1Dec 29, 2020
Environment-based RFID IC behavior
IMPINJ INC17 citations94
US10776198B1Sep 15, 2020
RFID integrated circuit identifier self-check
IMPINJ INC12 citations94
US10740574B1Aug 11, 2020
RFID tags enforcing persistence while powered
IMPINJ INC14 citations94
US10699178B1Jun 30, 2020
Digital identities for physical items
IMPINJ INC14 citations94
US10600298B1Mar 24, 2020
Exit-code-based RFID loss-prevention system
IMPINJ INC11 citations94
US10546162B1Jan 28, 2020
User-filtered RFID inventory
IMPINJ INC22 citations94
US10521768B1Dec 31, 2019
RFID loss-prevention based on transition risk
IMPINJ INC19 citations94
US10311353B1Jun 4, 2019
RFID integrated circuits with electrical bridges
IMPINJ INC14 citations94
US10121033B1Nov 6, 2018
Enhanced RFID tag authentication
IMPINJ INC19 citations94
US9959435B1May 1, 2018
Location-based access to RFID tag information
IMPINJ INC20 citations94
US9940490B1Apr 10, 2018
Enhanced RFID tag authentication
IMPINJ INC24 citations94
Showing the top 50 of 324 patents by PatentIndex Score.