| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 9 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Amplification control | |
| #3 | Loudspeakers and microphones | |
| #4 | Amplifiers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vardill Nicholas | 5 |
| #2 | Mumford Ray | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB9920466D0 | Control knob | |
| WO9935737A1 | Pre-amplifier | |
| GB9810200D0 | Playback circuitry | |
| GB9804766D0 | CD Copy protection | |
| GB9803208D0 | Mosfet driver circuit | |
| GB9802809D0 | Record and playback circuitry | |
| GB9800796D0 | Feedback control circuit | |
| GB9727396D0 | Noise reduction circuit | |
| GB9727397D0 | Pre-Amplifier circuit | |
| GB9403850D0 | Improvements relating to spray guns |