| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 3 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | United States | 3 | |
| #5 | Switzerland | 1 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Couplings | |
| #2 | Grates | |
| #3 | Rail vehicle suspensions | |
| #4 | Locomotives |
| # | Name | Total Patents |
|---|---|---|
| #1 | Simonson Sigvard | 2 |
| #2 | Hulson John W | 2 |
| #3 | Sigvard Simonson | 1 |
| #4 | Hulson Company | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES202143A1 | A railway wagon (Machine-translation by Google Translate, not legally binding) | |
| GB702973A | Railway car construction | |
| US2581020A | Journal lubricator | |
| US2568831A | Coupler attachment | |
| GB627182A | Grate structure | |
| GB632738A | Grate structures | |
| US2389980A | Locomotive exhaust nozzle |