| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 5 | |
| #2 | Switzerland | 4 | |
| #3 | Belgium | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Salov Sergei Fedorovich | 7 |
| #2 | Khodosh Vladimir Alexandrovich | 7 |
| #3 | Vasilenko Evstafy Andreevich | 7 |
| #4 | Ivanov Valentin Alexandrovich | 6 |
| #5 | Khaidurov Leonid Konstantinovi | 6 |
| #6 | Bolotin Evgeny Moiseevich | 6 |
| #7 | Saveliev Leonid Ivanovich | 5 |
| #8 | Sergei Fedorovich Salov | 4 |
| #9 | Valentin Alexandrovich Ivanov | 4 |
| #10 | Mozhaev Arkady Ivanovich | 4 |
| Publication | Filing date | Title |
|---|---|---|
| CA953937A | Device for erection of pressed monolithic lining in underworkings | |
| GB1213046A | Method of construction of tunnel linings | |
| GB1196344A | Shield for Constructing Tunnels |