David Birch
10Patents
6h-index
9Co-inventors
55Inventor score
Filing activity: Sep 16, 2003 → Jan 8, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7249097B2 | Method for ordering goods, services, and content over an internetwork using a virtual payment account | Physics | 217 | Expired |
| US7908226B2 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 63 | Active |
| US7606760B2 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 38 | Active |
| US7761385B2 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 26 | Active |
| US8452779B1 | Methods and system for targeted content delivery | Physics | 12 | Active |
| US9864990B2 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 6 | Active |
| US11423400B1 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 5 | Active |
| US9864989B2 | Method and apparatus for ordering goods, services, and content over an internetwork using a virtual payment account | Physics | 3 | Active |
| US9928509B2 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 2 | Active |
| US11551211B1 | Method and apparatus for ordering goods, services and content over an internetwork using a virtual payment account | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.