| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Materials and metallurgy | |
| #4 | Measurement | |
| #5 | Control | |
| #6 | Basic materials chemistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smyly Arthur L | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2263596A | Variable-weight control device | |
| US2058522A | Calorimeter | |
| US2045808A | Manufacture of iron oxide | |
| US2045807A | Oxidation of iron | |
| US2028956A | Method of making a hard surfaced cement | |
| US1934242A | Purification of gas | |
| US1293227A | Fluid-pressure governor. | |
| US1243998A | Fluid safety-valve. | |
| US1146531A | Gas-tester. | |
| US1187667A | Gas-governor. | |
| US1161990A | Combined fluid-pressure regulator and safety valve. | |
| CA385566A | Calorimeter | |
| CA378177A | Iron oxide manufacture |