Ameritech Services, Inc.
27Patents
3Active
27Granted
32Portfolio score
Filing activity: Mar 19, 1990 → Jul 9, 2012 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5343461A | Full duplex digital transmission facility loop-back test, diagnostics and maintenance system | Electricity | 219 | Expired |
| US5877957A | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 200 | Expired |
| US6175854A | Computer system architecture and method for multi-user, real-time applications | Electricity | 140 | Expired |
| US6112127A | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 81 | Expired |
| US5594938A | Universal TV interface for switch of broadcast video distribution (and related method) | Electricity | 72 | Expired |
| US6640141B2 | Automation system and method for the programming thereof | Electricity | 47 | Expired |
| US6385495B1 | Automation system and method for the programming thereof | Electricity | 43 | Expired |
| US6370564B2 | Computer system architecture and method for multi-user, real-time applications | Electricity | 24 | Expired |
| US6252953A | Method and system for providing a work-at-home telecommunication service | Electricity | 24 | Expired |
| US5128988A | Telephone-switched network, automatic meter-reading system based upon service address | Electricity | 21 | Expired |
| US6404882B2 | Method and system for call tracing | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6718031B2 | Method and system for call tracing | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6842650B2 | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 18 | Expired |
| US7020255B2 | Method and system for providing a work-at-home telecommunication service | Electricity | 16 | Expired |
| US7406353B2 | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 16 | Active |
| US7221984B2 | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 13 | Expired |
| US7170983B2 | Method and system for providing a work-at-home telecommunication service | Electricity | 12 | Expired |
| US5999616A | Method and system for call tracing | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD379994S | Phone placard | General | 8 | Expired |
| US8219219B2 | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 8 | Active |
| US6243458A | Method and system for call tracing | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD386184S | Remote control | General | 6 | Expired |
| US6925164B2 | Method and system for call tracing | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8649886B2 | Method and system of programming at least one appliance to change state upon the occurrence of a trigger event | Electricity | 2 | Active |
| US7221751B2 | Method and system for call tracing | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.