| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Measurement | |
| #3 | Control | |
| #4 | Materials and metallurgy | |
| #5 | Engines, pumps and turbines | |
| #6 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Furnaces | |
| #2 | Casings for combustion chambers | |
| #3 | Systems controlling non-electric variables | |
| #4 | Form printing surfaces | |
| #5 | Rotary-pistons | |
| #6 | Foundry moulding | |
| #7 | Measuring temperature |
| # | Name | Total Patents |
|---|---|---|
| #1 | Steele David R | 4 |
| #2 | Schimpf George C | 4 |
| #3 | Chenowith William H | 3 |
| #4 | Martin James V | 1 |
| #5 | Andrews John H P | 1 |
| #6 | Steele David Reisinger | 1 |
| #7 | Bohnhardt Charles F H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1742890A | Rotary pump | |
| US1634217A | Dross furnace | |
| US1579077A | Melting furnace | |
| US1569314A | Melting furnace | |
| US1632366A | Melting furnace | |
| US1569312A | Thermostatic control device | |
| US1411739A | Molding apparatus | |
| US1029090A | Crucible-furnace. | |
| US1004925A | Furnace-cover attachment. | |
| US900043A | Furnace-tilting mechanism. | |
| US845591A | Furnace. | |
| US743947A | Furnace. |