Alf Heidermark
10Patents
3h-index
10Co-inventors
53Inventor score
Filing activity: May 27, 2005 → Jun 8, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8059633B2 | Call forwarding in an IP multimedia subsystem (IMS) | Electricity | 10 | Active |
| US8671201B2 | Correlation of sessions in case of session transfer in IMS domain | Electricity | 5 | Active |
| US8266302B2 | Evaluating initial filter criteria | Electricity | 4 | Active |
| US8135386B2 | Method and apparatus for instance identifier based on a unique device identifier | Electricity | 3 | Active |
| US8619626B2 | Method and apparatus for instance identifier based on a unique device identifier | Electricity | 3 | Active |
| US8825875B2 | Session establishment in a communication network | Electricity | 1 | Active |
| US8477765B2 | Method and apparatus for correlating signalling in a communications network | Electricity | 0 | Active |
| US9648048B2 | Message handling in an IP multimedia subsystem | Electricity | 0 | Active |
| US9392027B2 | Message handling in an IP multimedia subsystem | Electricity | 0 | Active |
| US9882943B2 | Method of access provision | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.