| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | France | 4 | |
| #3 | United States | 3 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Military vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gomand Gabriel | 4 |
| #2 | Gabriel Gomand | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB302275A | Improvements in valves | |
| US1744221A | Valve | |
| US1521680A | Balanced sluice valve | |
| GB182791A | Improvements in sluice-valves | |
| US1507280A | Balanced sluice valve |