Robert Petrelli
7Patents
6h-index
25Co-inventors
59Inventor score
Filing activity: Sep 23, 1988 → Aug 31, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5181237A | Automation of telephone operator assistance calls | Electricity | 130 | Expired |
| US5185781A | Automation of telephone operator assistance calls | Electricity | 129 | Expired |
| US5459779A | Method for switching telephone calls to information service providers | Electricity | 83 | Expired |
| US5694459A | Personalized information service system | Electricity | 79 | Expired |
| US5444713A | Telephone information service system using digital and out-of-band signaling | Electricity | 73 | Expired |
| US4899375A | More efficient call handling for operator assistance calls | Electricity | 72 | Expired |
| US6359980B1 | Method for administering advanced number portability numbers | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.