| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 39 | |
| #2 | Switzerland | 6 | |
| #3 | France | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Engines, pumps and turbines | |
| #4 | Civil engineering | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Steam generation | |
| #2 | Grates | |
| #3 | Fluid heaters | |
| #4 | Construction of roads | |
| #5 | Combustion residues removal | |
| #6 | Casings for combustion chambers | |
| #7 | Cyclically operating valves | |
| #8 | Burners | |
| #9 | Supplying fuel to combustion device | |
| #10 | Upholstering equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herbert Grupp Dipl-Ing | 7 |
| #2 | Sturm Hermann | 7 |
| #3 | Grupp Dipl-Ing Herbert | 5 |
| #4 | Grupp Herbert Dipl-Ing | 5 |
| #5 | Gebrueder Wagner | 3 |
| #6 | Gebr Wagner | 3 |
| #7 | Zepeck Hubert | 3 |
| #8 | Joos Josef | 2 |
| #9 | Kocher Karl | 2 |
| #10 | Grupp Dipl-Ing Joachim | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190416200A | Improvements in or relating to the Stretching of Metal Sheets. | |
| DE1401843A1 | Starting device for steam generator with oil firing |