| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Water-closets with flushing devices | |
| #2 | Domestic plumbing installations | |
| #3 | Venting or aerating devices | |
| #4 | Ships | |
| #5 | Spraying devices | |
| #6 | Military vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Knop Friedrich | 6 |
| #2 | Meyer Gustav | 1 |
| #3 | Schuerer Adolf | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE691108C | Wash and shower system with one the discharge duration | |
| DE672822C | Pump toilet for submarines | |
| DE660861C | Attachment for an odor trap made of ceramic building material on a wash basin | |
| DE661531C | Flush valve | |
| DE651930C | Device for converting a nozzle into a mixing valve for cold and warm water | |
| DE648802C | Cleaning basin | |
| DE648234C | Shower head | |
| DE618880C | Self-closing flushing valve for gases and liquids with adjustable volume delivery | |
| DE624218C | Automatically closing flush valve | |
| DE596628C | Shut-off device | |
| DE654463C | Cleaning basin |