| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Consumer goods | |
| #3 | Thermal processes | |
| #4 | Basic materials chemistry | |
| #5 | Materials and metallurgy | |
| #6 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Swoboda Hans O | 8 |
| #2 | Metzger William F | 4 |
| #3 | Richards Earl M | 4 |
| #4 | Gustav Misch | 1 |
| #5 | Newsham Arthur S | 1 |
| #6 | Viersen Paul A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1994839A | Apparatus for treating materials | |
| US1994838A | Method and apparatus for handling materials | |
| US1839613A | Electric furnace | |
| US1787801A | Electrically-heated container | |
| US1781482A | Ironing machine | |
| US1658615A | Electric oven heater | |
| US1603165A | Heat-treating furnace | |
| US1771818A | Ironing machine | |
| US1616515A | Cracking liquid hydrocarbons | |
| US1670742A | Ironing machine | |
| US1632094A | Ironing machine |