| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 37 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Safety devices | |
| #3 | Mining | |
| #4 | Platform constructions | |
| #5 | Scaffolding | |
| #6 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Werner Gerhard | 1 |
| #2 | Idel Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE19953939A1 | Noise protection/absorption wall for roads and railways has frame of used motor vehicle tires located in rows in layers of decreasing size | |
| DE1131628B | Expansion element for longwall construction | |
| DE1099969B | Advance expansion frame | |
| GB759647A | Improvements in or relating to supports for use in mining | |
| DE1099485B | Extension machine for storage facilities | |
| DE1133689B | Extension device | |
| DE1110588B | Device and method for backing up the expansion in the mine |