| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 2 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Diagnosis and surgery | |
| #2 | Mechanically-driven clocks | |
| #3 | Electronic time-pieces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Orr Thomas | 6 |
| #2 | Pinder Russell Stuart | 2 |
| #3 | Tomasu Oru | 1 |
| #4 | Hazlett Samuel James | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4163447A | Heartbeat rate monitor | |
| US4091803A | Transducers | |
| NL165370B | Device for reading the heart rate. | |
| GB189721125A | An Improved Mechanical Contrivance for Holding String, Cord, Thread, or the like. | |
| CA294618A | Vehicle spring |