Nextel Communications, Inc.
🏢 View company profile →226Patents
198Active
226Granted
57Portfolio score
Filing activity: Feb 23, 1995 → Jun 29, 2012 · 180 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8019271B1 | Methods and systems for presenting information on mobile devices | Electricity | 321 | Active |
| US7929940B1 | System and method for transmitting wireless digital service signals via power transmission lines | Electricity | 265 | Active |
| US7574236B1 | System and method of operating an antenna in MIMO and beamforming modes | Electricity | 103 | Active |
| US8121604B1 | Systems and methods for operating wireless networks | Electricity | 71 | Active |
| US8126510B1 | Public safety communications network architecture | Electricity | 64 | Active |
| US7454203B2 | System and method for providing wireless services to aircraft passengers | Electricity | 61 | Active |
| US7359731B2 | Architecture to facilitate interoperability and inter-working of push to talk technologies | Electricity | 59 | Expired |
| US5590399A | Up-link channel assignment scheme for cellular mobile communications systems employing multi-beam antennas with beam selection | Emerging Cross-Sectional Technologies | 55 | Expired |
| US7853265B1 | Broadband wireless router-architecture enhancements for VoIP | Electricity | 47 | Active |
| US5912931A | Method for multicarrier signal detection and parameter estimation in mobile radio communication channels | Electricity | 46 | Expired |
| US8270995B1 | Composite application for group-based activity reservations | Electricity | 40 | Active |
| US7797010B1 | Systems and methods for talk group distribution | Electricity | 37 | Active |
| US5953661A | Method of maximizing spectral efficiency in a cellular communications system | Electricity | 37 | Expired |
| US7272123B2 | System and method for handoff processing | Electricity | 33 | Expired |
| US7693512B1 | Systems and methods for location-based forwarding of communication services | Electricity | 32 | Active |
| US7336962B2 | System and method for position equipment dusting in search and rescue operations | Physics | 32 | Expired |
| US7409219B2 | System and method for recovering a lost or stolen wireless device | Emerging Cross-Sectional Technologies | 31 | Active |
| US7693517B2 | System and method for handoff between base stations | Electricity | 30 | Active |
| US7764978B1 | System and method for providing in-building wireless network coverage | Electricity | 27 | Active |
| US8355320B1 | Systems and methods for providing presence information | Electricity | 26 | Active |
| US7328042B2 | Architecture for facilitating group sessions across dispatch operators | Electricity | 24 | Expired |
| US7738900B1 | Systems and methods of group distribution for latency sensitive applications | Electricity | 22 | Active |
| US7395075B2 | System and method for collecting continuous location updates while minimizing overall network utilization | Electricity | 20 | Active |
| US7864716B1 | Talk group management architecture | Electricity | 19 | Active |
| US7983228B1 | Integration of IP multimedia subsystem and a push-to-talk interoperability infrastructure | Electricity | 19 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.