| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Civil engineering | |
| #3 | Packaging and shipping | |
| #4 | Machines | |
| #5 | Furniture and games | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Woodworking tools | |
| #2 | Transport or storage devices | |
| #3 | Ladders | |
| #4 | Animal catching | |
| #5 | Machines for making railways | |
| #6 | Unspecified technologies | |
| #7 | Office furniture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erickson Peter | 15 |
| Publication | Filing date | Title |
|---|---|---|
| US1284275A | Ladder. | |
| CA178442A | Container for poisoned food | |
| US1233332A | Poisoned-food container. | |
| US1240430A | Cutter-guard. | |
| US1122487A | Cutter-guard. | |
| US1072931A | Railway-tie. | |
| US1074614A | Cutter-guard. | |
| US1025866A | Shaper-guard. | |
| US987452A | Shaper-guard. | |
| US992176A | Link for conveyer-chains. | |
| US925319A | Shaper-guard. | |
| US876159A | Drawer attachment. | |
| CA201155A | Ladder | |
| CA255258A | Poison food corral | |
| CA292462A | Gopher and vermin poison |