| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 19 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Railway bodies | |
| #2 | Unspecified technologies | |
| #3 | Railway brakes | |
| #4 | Rail vehicle suspensions | |
| #5 | Couplings | |
| #6 | Making forged metal products | |
| #7 | Grinding or polishing devices | |
| #8 | Unspecified technologies | |
| #9 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cremean William F | 21 |
| #2 | Bosworth Wilbur M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2395612A | Method of forming grab irons | |
| US1925174A | Key bolt or self-locking pin | |
| US1838661A | Dust guard | |
| US1817238A | Dustguard | |
| US1737920A | Door-locking mechanism | |
| US1683449A | Dust guard | |
| US1584436A | Car-door mechanism | |
| US1528913A | Car-door mechanism | |
| US1506615A | Method of constructing railway cars | |
| US1535814A | Car-docr mechanism | |
| US1486232A | Car-door arrangement | |
| US1514312A | Car-door-locking device | |
| US1440280A | Hopper-door-locking device | |
| US1298902A | Brake-beam hanger. | |
| US1298901A | Brake-beam hanger. | |
| US1289401A | Brake-beam hanger. | |
| US1292583A | Car-coupling. | |
| US1026022A | Grinding-machine. | |
| US956945A | Supporting-saddle for running-boards. | |
| CA262521A | Car door |