| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Thermal processes | |
| #3 | Chemical engineering | |
| #4 | Machines | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Analysing materials | |
| #3 | Domestic stoves | |
| #4 | Burners | |
| #5 | Mixing | |
| #6 | Unspecified technologies | |
| #7 | Climate change mitigation in buildings | |
| #8 | Producing ice | |
| #9 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hinman Charles W | 15 |
| #2 | Hinman Walter Hibbard | 2 |
| #3 | Wellman Walter F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1376543A | Gas-meter | |
| US1341056A | Gas-handling apparatus | |
| US1250176A | Gas-meter. | |
| US1221179A | Gas-meter. | |
| US1109225A | Gas-meter. | |
| US841779A | Gas apparatus. | |
| CA84872A | Air and gas mixer | |
| US773322A | Carbureter. | |
| US726925A | Gas lighting and heating apparatus. | |
| US726924A | Gas lighting and heating apparatus. | |
| US715800A | Air and gas mixer. | |
| US726923A | Gas lighting and heating apparatus. | |
| US687429A | Gas-meter. | |
| US638458A | Gas-meter. | |
| US638457A | Gas-meter. |