| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Transport | |
| #3 | Electrical machinery and energy | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Rail vehicle suspensions | |
| #2 | Electrically-conductive connections | |
| #3 | Steam generation | |
| #4 | Feeding fuel to combustion device | |
| #5 | Burners | |
| #6 | Railway bodies | |
| #7 | Fluid fuel combustion | |
| #8 | Milling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hermann Bleibtreu | 3 |
| #2 | Bleibtreu Hermann | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2915020A | Running gear for railroad vehicle | |
| US2837035A | Freight car truck | |
| US2915021A | Railway truck |