| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 17 | |
| #2 | Germany | 10 | |
| #3 | Switzerland | 6 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Agriculture | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Construction of roads | |
| #2 | Hydraulic engineering | |
| #3 | Horticulture | |
| #4 | Unspecified technologies | |
| #5 | Dredging | |
| #6 | Nails | |
| #7 | Foundations and excavations | |
| #8 | Crop agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Staerk Erwin | 22 |
| #2 | Erwin Staerk | 5 |
| Publication | Filing date | Title |
|---|---|---|
| AT231212B | Process for the formation of a vegetation layer on particularly steep, rocky terrain |