| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Austria | 3 | |
| #3 | United States | 2 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wehner Clemens | 11 |
| #2 | Maltner Carl | 7 |
| #3 | Bansen Fritz | 4 |
| #4 | Bansen Friedrich | 3 |
| #5 | Kandler Max | 2 |
| #6 | Laube Hermann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190305769A | Improvements in Water Gauges | |
| US721763A | Water-gage. | |
| GB190022897A | Stop Valves. | |
| US681285A | Stop-valve. | |
| GB189914265A | An Automatic Signalling Apparatus for Electric Tramways. | |
| GB189907160A | Improvements in the Production of Small Masses of Calcium Carbide. | |
| GB189611227A | Improvements in Stop Valves for Gas, Steam, and other Fluids. |