| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 8 | |
| #2 | Switzerland | 7 | |
| #3 | Austria | 5 | |
| #4 | Greece | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Compressed gas holders | |
| #2 | Fire-fighting | |
| #3 | Testing of structures | |
| #4 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schworetzky Gustav | 7 |
| #2 | Gustav Schworetzky | 6 |
| #3 | Clemens Graaff | 6 |
| #4 | Nicolaus Werle | 6 |
| #5 | Graaff Clemens | 6 |
| #6 | Werle Nicolaus | 5 |
| #7 | Gross Friedrich | 1 |
| #8 | Werle Nikolaus | 1 |