| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 24 | |
| #2 | France | 4 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Materials and metallurgy | |
| #3 | Engines, pumps and turbines | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Building materials | |
| #3 | Safety devices | |
| #4 | Transport or storage devices | |
| #5 | Finishing work on buildings | |
| #6 | Casting metal | |
| #7 | General building constructions | |
| #8 | Scaffolding | |
| #9 | Containers for goods storage | |
| #10 | Domestic plumbing installations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stadtlaender Otto | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB517768A | Improvements in valve gear for pumps for concrete and the like | |
| DE640174C | Lubricant and sealant for concrete pumps | |
| DE509239C | Process for the production of fine-pored insulating cement stones |