| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 150 | |
| #2 | Canada | 115 | |
| #3 | United Kingdom | 38 | |
| #4 | France | 20 | |
| #5 | Germany | 16 | |
| #6 | Switzerland | 7 | |
| #7 | Spain | 4 | |
| #8 | Austria | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Environmental technology | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Casings for combustion chambers | |
| #2 | Milling | |
| #3 | Steam generation | |
| #4 | Burners | |
| #5 | Combustion residues removal | |
| #6 | Transport or storage devices | |
| #7 | Feeding fuel to combustion device | |
| #8 | Fluid fuel combustion | |
| #9 | Unspecified technologies | |
| #10 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bailey Ervin G | 37 |
| #2 | Hardgrove Ralph M | 28 |
| #3 | Bailey Ervin George | 24 |
| #4 | Jacobus David S | 18 |
| #5 | Hardgrove Ralph Martin | 18 |
| #6 | Jacobus David Schenck | 14 |
| #7 | Kerr Howard James | 11 |
| #8 | Kerr Howard J | 10 |
| #9 | Lucke Charles E | 9 |
| #10 | Lucke Charles Edward | 7 |
| Publication | Filing date | Title |
|---|---|---|
| US1992459A | Furnace | |
| US1994444A | Fluid fuel burner | |
| US1994443A | Method of burning fluid fuel | |
| US2042204A | Pulverizing mill | |
| US2044296A | Burner | |
| US1986670A | Ledge block | |
| US2012802A | Pulverizing mill | |
| US1986669A | Furnace | |
| US2012415A | Furnace | |
| US1970585A | Furnace | |
| US2011026A | Furnace | |
| US1950454A | Boiler furnace | |
| US1919324A | Control of furnace temperature and furnace wall construction | |
| US1994447A | Burner | |
| US1986668A | Furnace | |
| US1986667A | Furnace | |
| GB364783A | Improvements in and connected with burners for furnaces | |
| US1911028A | Tube bending device | |
| US1939823A | Boiler | |
| US2024198A | Furnace structure |