| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Belgium | 2 | |
| #3 | Brazil | 2 | |
| #4 | Germany | 2 | |
| #5 | Spain | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Israel | 2 | |
| #9 | Italy | 2 | |
| #10 | Japan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Mountings for cannons and pistols | |
| #2 | Pistols and rifles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hillberg Robert L | 7 |
| #2 | Hillberg R | 4 |
| #3 | Robaato Rii Hirubaagu | 1 |
| #4 | Robaato Eru Hirubaagu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4291481A | Firearm magazine safety mechanism | |
| US4221066A | Firearm grip assembly | |
| US4208947A | Firearm hammer blocking safety mechanism |