| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Netherlands | 3 | |
| #3 | United States | 3 | |
| #4 | Denmark | 2 | |
| #5 | France | 2 | |
| #6 | Italy | 2 | |
| #7 | Sweden | 2 | |
| #8 | Austria | 1 | |
| #9 | Canada | 1 | |
| #10 | Japan | 1 | |
| #11 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Weapons | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology | |
| #4 | Transport | |
| #5 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Targets | |
| #2 | Building materials | |
| #3 | Vehicle drive control systems | |
| #4 | Climate change mitigation in wastewater treatment | |
| #5 | Transmission |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hansen Ib Schreiner | 8 |
| #2 | Schreiner-Hansen Ib | 3 |
| #3 | Schreiner Hansen Ib | 1 |
| #4 | Ibu Shiyureinaa Hansen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1143545A | Method of producing a clay pigeon | |
| US4271118A | Method of producing a clay pigeon | |
| DE2808782A1 | CLAY PIGEON AND METHOD FOR PRODUCING IT | |
| NL174986C | Apparatus for flipping disc-shaped objects, such as clay pigeons. | |
| US3621828A | Target projecting device with magazine indexing mechanism |