| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 34 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Thermal processes | |
| #5 | Environmental technology | |
| #6 | Mechanical elements | |
| #7 | Foods and drinks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herrick James A | 36 |
| Publication | Filing date | Title |
|---|---|---|
| US1100074A | Gas-producer. | |
| US1100075A | Gas-producer. | |
| US1210471A | Gas-producer. | |
| US1119280A | Charging device for gas-producers. | |
| US1077981A | Stirrer for gas-producers. | |
| US1197625A | Gas-producer. | |
| US1112534A | Gas-producer apparatus. | |
| US1069136A | Reversing-valve. | |
| US1075566A | Gas-producer. | |
| US1063540A | Gas-producer. | |
| US1073124A | Gas-producer. | |
| US1057833A | Gas-valve. | |
| US1001399A | Gas-valve. | |
| US1057832A | Gas-muffle. | |
| US1001953A | Gas-producer apparatus. | |
| US1004024A | Gas-producer apparatus. | |
| US1005210A | Gas-producer apparatus. | |
| US1001398A | Gas-producer. | |
| US1162357A | Gas-producer. | |
| US998614A | Gas-producer. |