Michael Kirchner
8Patents
6h-index
14Co-inventors
56Inventor score
Filing activity: Dec 29, 1995 → Dec 21, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5706437A | System and method for accessing a service on a services network | Electricity | 99 | Expired |
| US6393017B1 | Virtual PBX system | Electricity | 67 | Expired |
| US5745685A | Protocol extension in NSPP using an acknowledgment bit | Electricity | 59 | Expired |
| US6263370A | TCP/IP-based client interface to network information distribution system servers | Electricity | 22 | Expired |
| US6775272B2 | Virtual PBX system | Electricity | 18 | Expired |
| US9846025B2 | Track data determination system and method | Physics | 10 | Active |
| US7496091B2 | Virtual PBX system | Electricity | 5 | Active |
| US6724754B2 | Virtual PBX system | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.