| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Germany | 6 | |
| #3 | United States | 1 | |
| #4 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jean P Bernold | 6 |
| #2 | P Bernold Jean | 6 |
| #3 | Jean Bernold | 1 |
| #4 | Walter Pfeiffer Hans | 1 |
| #5 | Bernold Jean P | 1 |
| #6 | Pfeiffer Hans Walter | 1 |
| Publication | Filing date | Title |
|---|---|---|
| YU134771A | Reinforcing construction in tunnels and underminings | |
| US3696577A | Prefabricated reinforced concrete plate shaped construction element | |
| DE1922119A1 | Method for securing exposed soil and rock |