| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Greece | 8 | |
| #2 | United States | 3 | |
| #3 | Germany | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ball Geoffrey William | 14 |
| #2 | Ball Geoffrey W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8606961D0 | Electron multiplier | |
| GB8502842D0 | Electron multiplier | |
| EP0066954A2 | Mass spectrometers | |
| EP0055624A1 | Gas monitor | |
| US3940616A | Mass spectrometers | |
| US3899706A | Particle multipliers |