| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 22 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Fire-fighting | |
| #2 | Venting or aerating devices | |
| #3 | Spectacles | |
| #4 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weese Ernst | 14 |
| Publication | Filing date | Title |
|---|---|---|
| GB380733A | Water trap for arresting explosion waves in gas apparatus and pipe lines |