| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Consumer goods | |
| #3 | Machines | |
| #4 | Foods and drinks |
| # | Technology | |
|---|---|---|
| #1 | Tobacco | |
| #2 | Drying solid materials by removing liquid | |
| #3 | Unspecified technologies | |
| #4 | Separation | |
| #5 | Unspecified technologies | |
| #6 | Sucrose production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zeun Louis H | 4 |
| #2 | Adt John B | 3 |
| #3 | Horsey William C | 2 |
| #4 | Adt Albert W | 1 |
| #5 | Adt John Baptist | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3360125A | Tobacco-leaf separator | |
| US2033169A | Drier | |
| US1852341A | Tobacco cutting machine | |
| US1629943A | Electrical heating unit for drying apparatus | |
| US1629942A | Drying apparatus | |
| US1419094A | Tobacco-cutting machine | |
| GB117603A | Improvements in "Drying Apparatus". | |
| US1098076A | Rotary filtering apparatus. | |
| US1098075A | Filtering-press. | |
| US1057912A | Drying apparatus. | |
| CA199047A | Drier | |
| CA796992A | Tobacco-leaf separator |