| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Cyclically operating valves | |
| #5 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tennant Joseph A | 8 |
| #2 | Herbert Allen | 6 |
| #3 | Abercrombie James S | 4 |
| #4 | Stephens Charles D | 4 |
| #5 | Works Madden T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2047540A | Pump | |
| US2069338A | Pump | |
| US2030041A | Pump | |
| US2033210A | Pump | |
| US1940516A | Pump | |
| US1888053A | Pump | |
| US2069297A | Valve | |
| US1899299A | Pump | |
| US1899298A | Pump | |
| US1899364A | Pump | |
| US1899297A | Pump | |
| US1832259A | Pump | |
| US1848441A | Pump | |
| US1832258A | Pump | |
| US1832257A | Pump |