| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | France | 2 | |
| #3 | Canada | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Control | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Theodore Douglas | 5 |
| #2 | Tabb Warner T | 5 |
| #3 | Baumgartner Walter J | 2 |
| #4 | Adler Hyman G | 1 |
| #5 | Tabb Warner Throckmorton | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1604936A | Speed regulator | |
| US1572972A | Speed regulator | |
| US1470778A | Operating gear | |
| US1470037A | Valve | |
| US1473394A | Internal-combustion engine | |
| US1390510A | Electrically-operated speed-regulator | |
| US1390482A | Operating connection | |
| US1475175A | Valve | |
| US1626921A | Safety attachment for aircraft | |
| US1334486A | Transmission mechanism | |
| US1651919A | Mechanism for safely controlling internal-combustion engines upon aircraft | |
| CA230899A | Speed regulator |