Craig Heilmann
13Patents
10h-index
11Co-inventors
65Inventor score
Filing activity: Dec 11, 1998 → Mar 26, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6320948A | Telephony security system | Electricity | 110 | Expired |
| US6249575A | Telephony security system | Electricity | 71 | Expired |
| US6700964B2 | Encapsulation, compression and encryption of PCM data | Electricity | 44 | Expired |
| US6760420B2 | Telephony security system | Electricity | 39 | Expired |
| US6735291B1 | Virtual private switched telephone network | Electricity | 39 | Expired |
| US7440558B2 | Telephony security system | Electricity | 24 | Expired |
| US6760421B2 | Telephony security system | Electricity | 20 | Expired |
| US7231027B2 | Encapsulation, compression, and encryption of PCM data | Electricity | 17 | Expired |
| US6687353B1 | System and method for bringing an in-line device on-line and assuming control of calls | Electricity | 12 | Expired |
| US6718024B1 | System and method to discriminate call content type | Electricity | 12 | Expired |
| US6879671B2 | Virtual private switched telecommunications network | Electricity | 10 | Expired |
| US6542592B2 | Telephony security system | General | 0 | Revoked |
| US9195952B2 | Systems and methods for contextual mapping utilized in business process controls | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.