| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 26 | |
| #2 | United Kingdom | 5 | |
| #3 | France | 4 | |
| #4 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Unspecified technologies | |
| #3 | Rotary-pistons | |
| #4 | Venting or aerating devices | |
| #5 | Pistons and sealings | |
| #6 | Gearing | |
| #7 | Unspecified technologies | |
| #8 | Gas-flow silencers for machines | |
| #9 | Lubricating | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hicks George C Jr | 11 |
| #2 | Enyart Ralph C | 10 |
| #3 | Owens Robert H | 2 |
| #4 | Lee Friend Roydon | 1 |
| #5 | Oakley Louis P | 1 |
| #6 | Abbott Corwin C | 1 |
| #7 | Huebotter Harry A | 1 |
| #8 | Wainwright William W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1815161A | Instrument | |
| GB286142A | Improvements in or relating to fluid handling apparatus such as gas meters | |
| GB297789A | Improvements in or relating to fluid meters | |
| GB275186A | Improvements in or relating to fluid handling apparatus such as gas meters | |
| GB275187A | Improvements in or relating to fluid handling apparatus, such as gas meters | |
| US1797233A | Fluid meter | |
| US1785842A | Fluid-handling apparatus | |
| US1792208A | Fluid-handling apparatus | |
| US1637371A | Stuffing-box vent | |
| US1618181A | Cupola charger | |
| US1641840A | Fluid meter | |
| US1447599A | Flask guide | |
| US1258218A | Packing system. | |
| US1249934A | Pressure-regulator. | |
| US1235019A | Relief-valve. | |
| US1219928A | Fluid-pressure governor. | |
| US1098440A | Rotary blower. | |
| US975240A | Valve for blowers. | |
| US973197A | Fluid-pressure governor. | |
| US956852A | Gas-engine starter. |