| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 8 | |
| #2 | United States | 6 | |
| #3 | Switzerland | 5 | |
| #4 | Belgium | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy | |
| #3 | Civil engineering | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Railway systems | |
| #2 | Machines for making railways | |
| #3 | Electrically-conductive connections | |
| #4 | Blasting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Petersen Richard | 19 |
| #2 | Richard Petersen | 2 |
| #3 | Rangi Bhupinder | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2007249204A1 | Electrical connector and system | |
| US1068074A | Cableway. | |
| US1068164A | Cableway. | |
| US935859A | Suspended railway. | |
| GB190821826A | Improvements in Elevated Railways for Vehicles of the Suspended Type. | |
| US671923A | Bridge superstructure. |