| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Austria | 2 | |
| #3 | Canada | 2 | |
| #4 | Germany | 2 | |
| #5 | Spain | 2 | |
| #6 | Finland | 2 | |
| #7 | France | 2 | |
| #8 | United Kingdom | 2 | |
| #9 | Japan | 2 | |
| #10 | Mexico | 2 | |
| #11 | Netherlands | 2 | |
| #12 | Norway | 2 | |
| #13 | Poland | 2 | |
| #14 | United States | 2 | |
| #15 | Switzerland | 1 | |
| #16 | Czechoslovakia | 1 | |
| #17 | Italy | 1 | |
| #18 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Metal wire processing | |
| #2 | Shafts | |
| #3 | Structural elements | |
| #4 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kmety Istvan | 16 |
| #2 | Klausz Istvan | 16 |
| #3 | Pasztor Rezsoe | 12 |
| #4 | Meitzen Nandor | 12 |
| #5 | Asszonyi Csaba | 11 |
| #6 | Meitzen Nandor Dr | 5 |
| #7 | Pasztor Rezso | 4 |
| #8 | Asszonyi Csaba Dr | 4 |
| #9 | Asszonyi C | 3 |
| #10 | Klausz I | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US4505622A | Process and arrangement for the support of underground cavity systems by an efficient safety casing wall | |
| GB1597804A | Process and apparatus for supporting underground cavities | |
| GB1600847A | Welded grid primarily for supporting underground cavities and cavity systems as well as a process for producing such a grid |