| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Canada | 1 | |
| #3 | Czechia | 1 | |
| #4 | Algeria | 1 | |
| #5 | EAPO (Eurasian Patent Organization) | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Georgia | 1 | |
| #8 | Hong Kong | 1 | |
| #9 | Croatia | 1 | |
| #10 | Hungary | 1 | |
| #11 | Indonesia | 1 | |
| #12 | Israel | 1 | |
| #13 | Iceland | 1 | |
| #14 | Morocco | 1 | |
| #15 | New Zealand | 1 | |
| #16 | Poland | 1 | |
| #17 | Slovakia | 1 | |
| #18 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bierwirth Friedhelm | 13 |
| #2 | Bierwirth Frifdhelm | 1 |
| #3 | Friedhelm Bierwirth | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GEP20084524B | Device for earthquake protection against dynamic forces action |