| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 23 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 3 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Pistons and sealings | |
| #5 | Steam generation | |
| #6 | Steam traps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Richard Fischbach | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US1596168A | Valve | |
| GB241160A | Valve | |
| GB243111A | Improvements in or relating to cut-off valves and similar devices | |
| US1612273A | Stop valve | |
| US1636297A | Stop valve | |
| GB175953A | An improved stop-valve | |
| GB167782A | Stop-valve |