| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Packaging and shipping | |
| #3 | Machines | |
| #4 | Machine tools | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Ships | |
| #2 | Containers for goods storage | |
| #3 | Hand carts | |
| #4 | Soldering, welding and flame cutting | |
| #5 | Nails | |
| #6 | Unspecified technologies | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ewertz Eric H | 11 |
| #2 | Dalcher John T | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2246579A | Butt strap for welded joints | |
| US1950234A | Tank construction | |
| US1817071A | Vessel | |
| US1817072A | Vessel | |
| US1777880A | Means for covering cargo hatches | |
| US1777879A | Deck house for vessels | |
| CA189947A | Sled | |
| US1364626A | Vessel | |
| US1247098A | Sled. | |
| US1270276A | Sled. | |
| CA195724A | Ship |