| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Switzerland | 3 | |
| #3 | Austria | 2 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Solid fuel combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roggero Enrico | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US929496A | Hot-water boiler. | |
| GB190719055A | Improvements in Annular Tube Boilers for Hot Water or Steam | |
| GB190718928A | Improvements in Hot Water Boilers for Heating Purposes. | |
| GB190718828A | Marine Boiler with Vertical Annular Tubes | |
| GB190718829A | Sectional Boiler with Vertical Annular Tubes for Hot-water or Low-pressure Steam Heating Apparatus | |
| GB190514351A | Improvements in Water Tube Steam Generators. | |
| CA305634A | Manufacture of pressed or moulded articles from plastic materials |