| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | Denmark | 2 | |
| #3 | France | 2 | |
| #4 | Belgium | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Spain | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Pistons and sealings | |
| #3 | Pipes | |
| #4 | Safety devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Eweler Hans | 2 |
| #2 | Beck Erich Dipl-Ing | 2 |
| #3 | Reuter A | 2 |
| #4 | Beck Dipl-Ing Erich | 2 |
| #5 | Herden Herbert | 2 |
| #6 | Alfons Ernst Reuter | 1 |
| #7 | Reuter Alfons | 1 |
| #8 | Altland G | 1 |
| #9 | Beck E | 1 |
| #10 | Carstensen Dipl-Ing Carl Thoma | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES352742A1 | Improvements in closure valves with elastic material spraying. (Machine-translation by Google Translate, not legally binding) | |
| GB1039129A | Improvements in or relating to gate valves |