| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | United Kingdom | 7 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology | |
| #4 | Electrical machinery and energy | |
| #5 | Machine tools | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Metal tempering | |
| #2 | Furnaces | |
| #3 | Burners | |
| #4 | Reduction of greenhouse gas emissions | |
| #5 | Heat-exchanger without contact | |
| #6 | Details of furnaces | |
| #7 | Cables and insulators | |
| #8 | Manufacturing processes | |
| #9 | Punching metal | |
| #10 | Fluid fuel combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Theodor Schmidt | 7 |
| #2 | Schmidt Theodor | 2 |
| #3 | Kurt Wilde | 1 |
| #4 | Wilde Kurt | 1 |
| #5 | Jochen Wunning | 1 |
| #6 | Walter Litterscheidt | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1094766A | A high-speed heating furnace for metal articles | |
| US3459414A | Heat-treatment apparatus | |
| GB1023727A | Furnace equipment for the heating or heat-treatment of metal tubes | |
| US3285240A | Industrial gas burner | |
| GB981139A | Improvements in and relating to annealing furnaces for castings | |
| US3100631A | Cooled furnace transport rollers | |
| GB958583A | Improvements in or relating to cooled conveyor rollers for industrial furnaces | |
| US3022057A | Direct-heating oven | |
| CA665577A | Direct-heating oven |