| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Supplying fuel to combustion device |
| # | Name | Total Patents |
|---|---|---|
| #1 | Friedrich Dietz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB387341A | Improvements in liquid raising pumps | |
| GB349661A | Petroleum borehole pump | |
| US1831411A | Pump | |
| GB345620A | Improvements relating to pumps |