| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Denmark | 3 | |
| #3 | Spain | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | United States | 3 | |
| #6 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Shaping of plastics | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stoeffler Ernst | 13 |
| Publication | Filing date | Title |
|---|---|---|
| GB190708473A | Improvements in Means for Securing the Covers of Pressure Vessels. | |
| US780138A | Manufacture of perforated bricks or blocks. | |
| GB190411523A | Improvements in the Manufacture of Lime and Sand Bricks or Blocks | |
| GB190411258A | Improvements in Fire-proof Quartz Bricks or Blocks | |
| US802608A | Manufacture of lime and sand bricks or blocks. | |
| US805242A | Fireproof quartz brick or block. |