| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Packaging and shipping | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Separating solids | |
| #2 | Transport or storage devices | |
| #3 | Motor vehicles | |
| #4 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Converse Frederic S | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1133008A | Coal-loading machine. | |
| US1057709A | Rotary screen. | |
| US1079543A | Rotary coal-screen. | |
| CA126597A | Coal screen | |
| CA107072A | Coal chute | |
| US892406A | Coal-screen. | |
| CA101969A | End gate for wagon | |
| US827349A | Extension coal-chute. | |
| US800079A | Wagon end-board. | |
| US733542A | Coal or wood bag. | |
| US779529A | Coal-chute. |