Technophone Limited
27Patents
0Active
27Granted
35Portfolio score
Filing activity: Jun 11, 1985 → Nov 3, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5151946A | Variable configuration portable telephone | Electricity | 145 | Expired |
| USD334926S | Portable telephone | General | 136 | Expired |
| USD289896S | Pocket telephone | General | 112 | Expired |
| USD321885S | Holder for a portable telephone handset | General | 105 | Expired |
| USD302423S | Portable radio/telephone instrument | General | 97 | Expired |
| USD321183S | Portable handset telephone | General | 76 | Expired |
| USD331566S | Battery housing for a portable telephone | General | 68 | Expired |
| US5227748A | Filter with electrically adjustable attenuation characteristic | Electricity | 63 | Expired |
| USD319052S | Mobile telephone | General | 63 | Expired |
| USD328733S | Battery housing for a portable telephone | General | 61 | Expired |
| US5038112A | Levelling control circuit | Electricity | 58 | Expired |
| US5259018A | Radio telephone system having a handset adapted to be removably connected and containing a NAM for storing a telephone number identifying the handset | Electricity | 56 | Expired |
| US5839051A | Host radio telephone to directly access a handset NAM through a connecter without requiring the handset controller to be employed | Electricity | 48 | Expired |
| US5095177A | RF sealed radio housing | Electricity | 48 | Expired |
| USD319061S | Charger stand for a portable handset telephone and its spare battery pack | General | 41 | Expired |
| USD333661S | Antenna | General | 39 | Expired |
| US5083240A | Light guide | Electricity | 38 | Expired |
| US5190325A | Magnetic catch | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5053928A | Light guide | Electricity | 34 | Expired |
| USD316416S | Stand for a portable telephone | General | 31 | Expired |
| US5375129A | Maximum likelihood sequence detector | Electricity | 31 | Expired |
| US5384782A | Digital radio receiver with decoding of confidence level information substituted for interleaved data | Electricity | 31 | Expired |
| US4920352A | Retractable antenna | Electricity | 24 | Expired |
| US5267234A | Radio transceiver with duplex and notch filter | Electricity | 23 | Expired |
| US5185747A | Data symbol estimation | Electricity | 18 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.