| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Agriculture | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Animal catching | |
| #3 | Unspecified technologies | |
| #4 | Spraying devices | |
| #5 | Non-positive-displacement pumps | |
| #6 | Venting or aerating devices | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spreng Warren M | 7 |
| #2 | Myers Philip A | 3 |
| #3 | Conery William J | 2 |
| #4 | Finley Karl L | 1 |
| #5 | Maitlen John J | 1 |
| #6 | Elliott Frank R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3115844A | Jet pump improvement | |
| US2736605A | Vane regulator for field crop sprayer | |
| US2685476A | Variable discharge blower | |
| US2466792A | Jet pumping system and apparatus | |
| US2524770A | Centrifugal ejector pump | |
| US2448159A | Spray gun | |
| US2460545A | Spray gun | |
| US2347755A | Spray gun valve | |
| US2283357A | Self-oiling pump jack | |
| US2252872A | Traction sprayer | |
| US2214208A | Sanitary base for well pumps | |
| US2243597A | Traction sprayer | |
| US1943034A | Double acting pump cylinder | |
| US1816191A | Power head | |
| US1648499A | Pressure valve |