BT&D Technologies, Ltd.
20Patents
0Active
20Granted
33Portfolio score
Filing activity: May 31, 1988 → Nov 1, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5289345A | Opto-electronic device housing having self-healing elastomeric board mount with support pylons | Electricity | 53 | Expired |
| US4983009A | Light transmitting device utilizing indirect reflection | Electricity | 36 | Expired |
| US5315680A | Optical fiber connector structure including three ferrules and an optical baffle | Physics | 29 | Expired |
| US5222170A | Optical fiber device fabrication | Physics | 25 | Expired |
| US5091981A | Traveling wave optical modulator | Physics | 25 | Expired |
| US5454058A | Selective optical signal switch and/or combiner | Electricity | 23 | Expired |
| US5315104A | Photodiode photodetector with adjustable active area | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5257285A | Transimpedance pre-amplifier and a receiver including the pre-amplifier | Electricity | 17 | Expired |
| US5189713A | Electro-optic device | Physics | 17 | Expired |
| US4854659A | Optical devices | Physics | 17 | Expired |
| US5233209A | Guard ring structure with graded Be implantation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5175776A | Optical fiber switch | Physics | 13 | Expired |
| US5094518A | Optical components | Physics | 13 | Expired |
| US5224116A | Laser amplifier | Electricity | 12 | Expired |
| US5305413A | Optical fibre feedthrough | Physics | 11 | Expired |
| US4995546A | Device mounting | Electricity | 10 | Expired |
| USRE34790E | Optical components | General | 9 | Expired |
| US5288301A | Method for fabrication of fused fibre devices | Physics | 8 | Expired |
| US5276744A | Electro-optic device | Physics | 3 | Expired |
| US5342425A | Fabrication of fused fibre devices | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.