Duncan Garrett
26Patents
5h-index
20Co-inventors
65Inventor score
Filing activity: Jul 15, 2005 → Jul 5, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7424977B2 | Method and system for conducting contactless payment card transactions | Physics | 218 | Active |
| US8196818B2 | Apparatus and method for integrated payment and electronic merchandise transfer | Physics | 22 | Active |
| US8370258B2 | Apparatus, method, and computer program product for recovering torn smart payment device transactions | Physics | 13 | Active |
| US7717346B2 | Collision detection and avoidance scheme for contactless card payment systems | Physics | 10 | Active |
| US8490880B2 | Proximity payment device with active switch | Emerging Cross-Sectional Technologies | 5 | Active |
| US7775445B2 | Reference equipment for testing contactless payment devices | Physics | 5 | Active |
| US8314702B2 | Methods and systems for activating a proximity information device | Electricity | 5 | Active |
| US7431217B2 | Reference equipment for testing contactless payment devices | Physics | 4 | Expired |
| US8401964B2 | Apparatus, method, and computer program product for encoding enhanced issuer information in a card | Physics | 3 | Active |
| US9454865B2 | Methods and systems to securely load / reload acontactless payment device | Physics | 3 | Active |
| US9779402B2 | Electronic authentication systems | Electricity | 3 | Active |
| US7422157B2 | Payment card signal characterization methods and circuits | Physics | 2 | Expired |
| US8442796B2 | Method and system for simulating a proximity-based transaction device | Physics | 2 | Active |
| US11922428B2 | Security for contactless transactions | Electricity | 1 | Active |
| US9038914B2 | Method and system for simulating a proximity-based transaction device | Physics | 1 | Active |
| US11734669B2 | Access control bypass on mobile for mass transit | Electricity | 0 | Active |
| US12118534B2 | Access control bypass on mobile for mass transit | Electricity | 0 | Active |
| US11188893B2 | Access control bypass on mobile for mass transit | Electricity | 0 | Active |
| US10461927B2 | Secure channel establishment between payment device and terminal device | Electricity | 0 | Active |
| US11146539B2 | Method and system for trusted notifications | Physics | 0 | Active |
| US7520435B2 | Contactless payment card reader with a frusto-conical operating volume | Physics | 0 | Active |
| US11379849B2 | Security for contactless transactions | Electricity | 0 | Active |
| US11580509B2 | Transaction device, computer program and transaction method | Physics | 0 | Active |
| US10181121B2 | Apparatus, method, and computer program product for recovering torn smart payment device transactions | Physics | 0 | Active |
| US11855969B2 | Method and system for trusted notifications | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.