| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Poland | 14 | |
| #2 | Germany | 3 | |
| #3 | Belgium | 1 | |
| #4 | Czechoslovakia | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Hungary | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Piesniewski Krzysztof | 10 |
| #2 | Piwowarski Wlodzimierz | 9 |
| #3 | Blochel Helmut | 4 |
| #4 | Helbin Wladyslaw | 3 |
| #5 | Jaromin Zygmunt | 3 |
| #6 | Socik Jan | 3 |
| #7 | Kuczka Eugeniusz | 3 |
| #8 | Sikora Wlodzimierz | 3 |
| #9 | Kubica Wiktor | 3 |
| #10 | Skoczynski Wojciech | 2 |
| Publication | Filing date | Title |
|---|---|---|
| PL253339A1 | Geophone testing system | |
| PL250348A1 | Loader in particular for double-arm longwall mechanical coal miner | |
| PL249988A1 | Conveyor | |
| PL244026A1 | Method of jointing links of driving chain of a scraper conveyor | |
| PL240940A1 | Mining head | |
| PL233736A1 | Sprinkling nozzle | |
| HU166862B | Method for advancing breastwork by use of two mining combines and apparatus for carrying out the method | |
| DE1926171A1 | Resilient pit lining |