| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Consumer goods | |
| #3 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Amplifiers | |
| #2 | Electrophonic musical instruments | |
| #3 | Amplification control | |
| #4 | Loudspeakers and microphones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keir Bruce | 4 |
| #2 | Alvarez Santiago | 4 |
| #3 | Grindrod Stephen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB202100574D0 | Reactive Attenuator | |
| GB201621656D0 | System for configuring a musical instrument amplifier | |
| GB0619953D0 | Instrument amplication system | |
| GB9300664D0 | Audio preamplifier using high voltage MOSFET | |
| GB9300669D0 | Audio amplifier | |
| US5467400A | Solid state audio amplifier emulating a tube audio amplifier |