| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Transport or storage devices | |
| #3 | Crop agriculture | |
| #4 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hinselmann Wilhelm | 7 |
| #2 | Tiefenthal Carl | 5 |
| #3 | Wilhelm Hinselmann | 1 |
| #4 | Carl Tiefenthal | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB486820A | Improvements in pit props | |
| US2192079A | Pit prop |