| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Materials and metallurgy | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Details of furnaces | |
| #2 | Furnaces | |
| #3 | Casings for combustion chambers | |
| #4 | Unspecified technologies | |
| #5 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ann Stevens Mary | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US1571561A | Furnace-roof structure | |
| US1596695A | Furnace-chamber construction | |
| US1534472A | Open-hearth-furnace roof | |
| US1511535A | Kiln construction | |
| US1560618A | Brick-treating apparatus | |
| US1727138A | Art of making fire brick | |
| US1710247A | Furnace-arch construction | |
| US1685617A | Self-sustaining furnace arch | |
| US1492815A | Hanger for arch bricks | |
| US1503455A | Kiln | |
| US1512004A | Yielding-arch construction | |
| US1574946A | Hanging-arch construction |