| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | United States | 3 | |
| #3 | Argentina | 2 | |
| #4 | Austria | 2 | |
| #5 | Australia | 2 | |
| #6 | Brazil | 2 | |
| #7 | Canada | 2 | |
| #8 | German Democratic Republic | 2 | |
| #9 | Germany | 2 | |
| #10 | Denmark | 2 | |
| #11 | Spain | 2 | |
| #12 | Finland | 2 | |
| #13 | Ireland | 2 | |
| #14 | Italy | 2 | |
| #15 | Luxembourg | 2 | |
| #16 | Philippines | 2 | |
| #17 | Poland | 2 | |
| #18 | Portugal | 2 | |
| #19 | Sweden | 2 | |
| #20 | Yugoslavia (Serbia and Montenegro) | 2 | |
| #21 | Czechoslovakia | 1 | |
| #22 | France | 1 | |
| #23 | United Kingdom | 1 | |
| #24 | Japan | 1 | |
| #25 | Mexico | 1 | |
| #26 | Netherlands | 1 | |
| #27 | Norway | 1 | |
| #28 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #29 | South Africa | 1 | |
| #30 | Zimbabwe | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements | |
| #2 | Alloys | |
| #3 | Metal production and refining | |
| #4 | Ammonia or cyanogen |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lask Gert-Wilhelm | 19 |
| #2 | Lask Gert-Wilhelm Dr Rer Nat | 4 |
| #3 | Lask G | 4 |
| #4 | Lask G-W | 2 |
| #5 | Lask G W | 2 |
| #6 | Lask Gert W | 2 |
| #7 | Lask Gert Wilhelm | 1 |
| #8 | Lask Gerd-Wilhelm | 1 |
| #9 | Gerutoobuiruherumu Rasuku | 1 |
| #10 | Lask Gert-Vilgelm | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3148274A1 | Process for the preparation of calcium cyanamide | |
| DE3141677A1 | Process for the preparation of calcium carbide | |
| CH645868A5 | Process for preparing silicon- and carbon-containing raw-material mouldings, and use of the raw-material mouldings |