| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Audio-visual technology | |
| #3 | Packaging and shipping | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Household appliances | |
| #2 | Laundering textiles | |
| #3 | Advertising | |
| #4 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kolstad Ole O | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2213737A | Foldable rack | |
| US1640154A | Mail box | |
| US1605118A | Mail box | |
| US1640153A | Mail box | |
| US1547588A | Mail box | |
| US1480452A | Mail box | |
| US1360229A | Tag for milk-bottles | |
| CA175959A | Bottle | |
| US1206335A | Bottle. | |
| CA245878A | Mail box | |
| CA264917A | Mail box | |
| CA265110A | Mail box |