| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 12 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | Italy | 2 | |
| #5 | Denmark | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | United States | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spencer Joseph | 9 |
| #2 | Spencer Maria | 6 |
| #3 | Fry Timothy John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8917467D0 | Freezable ECG display | |
| GB8906840D0 | Heart monitoring equipment | |
| IT8522290D0 | State of rate cardiac monitor e.g. for intensive care | |
| GB8515579D0 | Electrical energy source | |
| GB8407155D0 | Cardiac monitors | |
| GB2108328A | Electrical energy source | |
| US4510935A | Cardiac defibrillator | |
| GB2077442A | Heart monitor | |
| FR2478893A1 | IMPROVEMENTS TO THE ELECTRICAL SUPPLY OF PERMANENTLY AVAILABLE EQUIPMENT | |
| GB2057272A | Defibrillator | |
| GB1586973A | Defibrillator | |
| GB1496982A | Battery charger | |
| GB1438013A | Multi-channel recorders | |
| GB1273835A | Improvements in and relating to cardiac apparatus |