| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Railway brakes | |
| #2 | Rail vehicle suspensions | |
| #3 | Railway bodies | |
| #4 | Machines for making railways | |
| #5 | Vehicle brake control systems | |
| #6 | Clutches and brakes | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Broderick Haskell | 16 |
| #2 | Maltby George B | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US1725348A | Railroad tie | |
| US1663984A | Railroad tie | |
| US1628839A | Truck bolster | |
| US1602108A | Load-controlled air brake | |
| US1598909A | Lubricated center bearing for car trucks | |
| US1537028A | Brake-beam support | |
| US1532626A | Brake-beam support | |
| US1507173A | Railway-brake-lever connection | |
| US1511811A | Brake-beam support | |
| US1482610A | Brake support | |
| US1479235A | Brake-beam support | |
| US1482609A | Brake head | |
| US1444460A | Slack adjuster for railway brakes | |
| US1443740A | Brake support | |
| US1440734A | Bracket for brake hangers | |
| US1391895A | Railway-brake indicator | |
| US721715A | Car-truck. | |
| US687843A | Car-roof. | |
| US684837A | Spring-plank for car-trucks. | |
| US649172A | Car-post. |