| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Czechia | 1 | |
| #4 | Hungary | 1 | |
| #5 | Poland | 1 | |
| #6 | Russian Federation | 1 | |
| #7 | Slovakia | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bald Erwin | 11 |
| Publication | Filing date | Title |
|---|---|---|
| EP0728679A1 | Access shaft with a covermember for an underground tank | |
| DE19603920A1 | Dome shaft with a dome shaft cover | |
| US5238033A | Apparatus for collecting liquid leakage | |
| DE4025839A1 | DEVICE FOR COLLECTING LEAKAGE LIQUIDS | |
| DE4017534A1 | Underground fuel storage tank - has flexible bag fitted around filler pipe to catch any leakage |