| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 4 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Weapons | |
| #2 | Agriculture | |
| #3 | Machines | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Weapon sights | |
| #2 | Animal care | |
| #3 | Unspecified technologies | |
| #4 | Chairs and beds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Steffan Walter J | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US4784346A | Motorized fishing reel | |
| US4598878A | Motorized fishing reel | |
| CA1107544A | Sighting in apparatus for rifle mounted telescope gunsights | |
| US4095347A | Sighting in apparatus for rifle mounted telescope gunsights | |
| US3908282A | Sighting in apparatus for rifle mounted telescope gunsights | |
| US3299445A | Power means for sofa bed | |
| US3277503A | Sofa bed | |
| CA790258A | Sofa bed |