| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 10 | |
| #2 | United States | 10 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Packaging and shipping | |
| #3 | Consumer goods | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Hand carts | |
| #3 | Load transportation vehicles | |
| #4 | Transport or storage devices | |
| #5 | Vehicle windows, roofs and doors | |
| #6 | Railway shifting | |
| #7 | Doors and windows | |
| #8 | Ice-boxes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kappen John W | 20 |
| #2 | Kappen Frieda E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3155203A | Multiple purpose door | |
| US3104910A | Material handling mechanism | |
| US3118684A | Nesting four wheel truck | |
| US2974917A | Pallet | |
| US3001797A | Pallet transporting apparatus | |
| US3096895A | Lifting unit | |
| US2947436A | Insulated container | |
| US2711835A | Material handling means | |
| US2668681A | Article handling means | |
| US2521727A | Material handling apparatus | |
| CA687087A | Lifting unit | |
| CA535997A | Corrugated pallet | |
| CA662884A | Articulated arm structure | |
| CA518665A | Material handling apparatus | |
| CA662883A | Pallet transporting apparatus | |
| CA681097A | Articulated arm assembly | |
| CA685585A | Nesting four wheel truck | |
| CA650721A | Pallet | |
| CA634098A | Insulated container | |
| CA518666A | Material handling means |