| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 20 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Installations for obtaining water | |
| #3 | Pumps | |
| #4 | Unspecified technologies | |
| #5 | Shafts | |
| #6 | Gearing | |
| #7 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cloos Dr-Ing Ernst | 15 |
| #2 | Bohn Oskar | 2 |
| #3 | Cloos Ernst Dr-Ing | 2 |
| #4 | Pflanz Helmut | 2 |
| #5 | Ernst Cloos | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1210282B | Shut-off device, in particular slide, with press-on seals | |
| US3118461A | Wedge gate for shut-off valves | |
| GB972793A | Improvements in and relating to gate valves | |
| FR1284931A | Wedge wedge for shut-off valve, in particular hollow wedge | |
| DE1266594B | Butterfly valve |