David Zahn
3Patents
3h-index
3Co-inventors
33Inventor score
Filing activity: Mar 23, 2005 → Aug 18, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7388490B2 | Methods and systems for locating VOIP terminals for improved 911 service | Electricity | 20 | Expired |
| US7792264B2 | Ring tone selected by calling party of third party played to called party | Electricity | 8 | Active |
| US8160220B2 | Request to block use of remotely selected ring tone | Electricity | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.