| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | United Kingdom | 4 | |
| #4 | Austria | 1 | |
| #5 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Guiding railway traffic | |
| #2 | Railway brakes | |
| #3 | Vehicle wheels | |
| #4 | Machines | |
| #5 | Supplying fuel to combustion device |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hudson Albert Edmund | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US1268011A | Spark-arrester. | |
| CA185687A | Spark arrester | |
| CA188421A | Spark arrester | |
| US1136133A | Throttle or starting valve. | |
| US1113557A | Sanding device. | |
| US1112453A | Trip device. | |
| GB191327179A | Improvements in Train Stopping Devices. | |
| GB191327180A | Improvements in Sanding Means for Train Stopping Devices. | |
| GB191314336A | Automatic Train Stop Devices. | |
| GB191327181A | Improvements in or relating to the Operation of the Throttles or Starting Valves of Locomotives. | |
| US1136132A | Automatic train-stop device. | |
| CA151713A | Train stopn mechanism | |
| CA198707A | Spark arrester |