| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Materials and metallurgy | |
| #6 | Engines, pumps and turbines | |
| #7 | Civil engineering | |
| #8 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Burners | |
| #2 | Unspecified technologies | |
| #3 | Parachutes | |
| #4 | Mixing | |
| #5 | Finishing textile fabrics | |
| #6 | Drying solid materials by removing liquid | |
| #7 | Starting of combustion engines | |
| #8 | Metal tempering | |
| #9 | Fire-fighting | |
| #10 | Treating harvested food |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hess Frederic O | 15 |
| #2 | Fred Hess | 6 |
| #3 | Le Boutillier Henry W | 2 |
| #4 | Mann Carl P | 2 |
| #5 | Joseph Ehlinger | 1 |
| #6 | Hoopes Penrose R | 1 |
| #7 | Wakefield Richard E B | 1 |
| #8 | Townsend John W | 1 |
| #9 | Gorman Earl F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB559352A | Improvements in or relating to airplane heaters | |
| US2318346A | Rotary pump | |
| US2339477A | Furnace wall burner | |
| US2314089A | Aircraft heater | |
| US2287246A | Furnace wall burner | |
| US2332380A | Fire check | |
| US2228114A | Gas burner | |
| US2199951A | Gas burner | |
| US2287245A | Furnace wall burner | |
| US2295732A | Continuous kiln | |
| US2196829A | Air heater | |
| US2243704A | Gas mixing machine | |
| US2215081A | Bell type furnace | |
| GB496146A | Improvement in method and burner for effecting combustion | |
| US2215080A | Gas heated furnace and method of operating same | |
| US2215079A | Apparatus for burning gas | |
| US2196828A | Internal combustion engine heater | |
| US2103365A | Gas burner | |
| US2148859A | Heat treatment method and apparatus | |
| US2105533A | Gas burning apparatus |