Joseph Duffy
6Patents
4h-index
27Co-inventors
53Inventor score
Filing activity: Apr 16, 2004 → Jul 11, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6999824B2 | System and method for implementing safety instrumented systems in a fieldbus architecture | Physics | 107 | Expired |
| US7167762B2 | System and method for implementing safety instrumented systems in a fieldbus architecture | Physics | 70 | Expired |
| US7486999B2 | System and method for implementing safety instrumented systems in a fieldbus architecture | Physics | 8 | Active |
| US7489977B2 | System and method for implementing time synchronization monitoring and detection in a safety instrumented system | Physics | 5 | Active |
| US11966900B2 | System and method for detecting unpaid items in retail store transactions | Physics | 2 | Active |
| US11983751B2 | Systems and methods for detecting inbound and outbound traffic at a facility | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.