| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools | |
| #3 | Foods and drinks | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Fluid fuel combustion | |
| #2 | Burners | |
| #3 | Hand-held cutting tools | |
| #4 | Accessories for machine tools | |
| #5 | Unspecified technologies | |
| #6 | Food preservation |
| # | Name | Total Patents |
|---|---|---|
| #1 | George Hofmann | 10 |
| Publication | Filing date | Title |
|---|---|---|
| US1980202A | Safety razor | |
| US1879900A | Safety razor | |
| US1948214A | Furnace | |
| GB337490A | A method of and furnace for burning fuel mixtures | |
| US1841030A | Furnace | |
| US1847832A | Furnace | |
| US1847831A | Oil burning apparatus | |
| US1727599A | Furnace | |
| US1727598A | Furnace | |
| US1635843A | Method of preserving eggs | |
| US1576509A | Feed attachment for drill presses |