Inventor · disambiguated record
Joseph Duffy
Also filed as: DUFFY JOSEPH · DUFFY JOSEPH D
6 granted patents·4 pending applications·329 citations·filing 2004–2024
86Inventor score
Top patents by PatentIndex Score
10 records- 0196US7167762B2System and method for implementing safety instrumented systems in a fieldbus architectureFIELDBUS FOUNDATION·Filed 2005·Granted Jan 23, 2007·133 cites·20 claims
- 0294US6999824B2System and method for implementing safety instrumented systems in a fieldbus architectureFIELDBUS FOUNDATION·Filed 2004·Granted Feb 14, 2006·164 cites·56 claims
- 0391US11966900B2System and method for detecting unpaid items in retail store transactionsWALMART APOLLO LLC·Filed 2020·Granted Apr 23, 2024·6 cites·18 claims
- 0487US7486999B2System and method for implementing safety instrumented systems in a fieldbus architectureFIELDBUS FOUNDATION·Filed 2007·Granted Feb 3, 2009·15 cites·6 claims
- 0582US7489977B2System and method for implementing time synchronization monitoring and detection in a safety instrumented systemFIELDBUS FOUNDATION·Filed 2006·Granted Feb 10, 2009·11 cites·19 claims
- 0671US2024220958A1System and method for detecting unpaid items in retail store transactionsWALMART APOLLO LLC·Filed 2024·Application pending·0 cites
- 0764US11983751B2Systems and methods for detecting inbound and outbound traffic at a facilityWALMART APOLLO LLC·Filed 2022·Granted May 14, 2024·0 cites·16 claims
- 0857US2020380252A1Systems and methods for detecting egress at an entrance of a retail facilityWALMART APOLLO LLC·Filed 2020·Application pending·0 cites
- 0953US2009105849A1System and method for implementing safety instrumented systems in a fieldbus architectureFIELDBUS FOUNDATION·Filed 2008·Application pending·0 cites
- 1051US2009112336A1System and method for implementing time synchronization monitoring and detection in a safety instrumented systemDUFFY JOSEPH D·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →