| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 6 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Separation | |
| #3 | Separating solids using liquids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keil Philipp | 2 |
| #2 | Keller Bernhard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB688828A | Improvements relating to scraper conveyors | |
| GB695359A | Conveyors | |
| DE953596C | Belt conveyor |