| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | France | 3 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Gearing | |
| #3 | Steam turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benn Hans Hamilton | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB415675A | Improvements in friction clutches | |
| GB403844A | Improvements in friction clutches | |
| GB358244A | Improvements in variable speed gears | |
| GB276406A | Improvements in friction clutches | |
| GB270464A | Improvements in friction clutches | |
| GB240896A | Improvements in governors for turbines and other prime movers | |
| GB144465A | Improvements in or relating to friction clutches |