| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 18 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Supplying fuel to combustion device | |
| #2 | Details of furnaces | |
| #3 | Clutches and brakes | |
| #4 | Furnaces | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gustav Korngiebel | 3 |
| #2 | Korngiebel Gustav | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB422607A | A method of and means for regulating pressure conditions in flues or air conduits | |
| US1708310A | Draft regulator for flues or chimneys | |
| GB314186A | Improvements in and relating to draught regulators for furnace installations | |
| US1615588A | Regulator for the movements of air or smoke in flues | |
| GB179721A | Device for regulating the draught in stove, furnace and other flues |