| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Agriculture | |
| #3 | Engines, pumps and turbines | |
| #4 | Measurement | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Spraying devices | |
| #2 | Animal catching | |
| #3 | Cooling of machines | |
| #4 | Pipes | |
| #5 | Unspecified technologies | |
| #6 | Unspecified technologies | |
| #7 | Testing of structures | |
| #8 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hull John C | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US1792983A | Dust-distributor head | |
| US1757195A | Spray gun | |
| US1719373A | High-pressure pump | |
| US1608067A | Hose apparatus | |
| US1558362A | Dust-insecticide-applying machine | |
| US1571837A | Cooling system for sprayers | |
| US1579319A | Spraying machine | |
| US1509208A | Process and system of applying insecticides | |
| US1561646A | Spraying device | |
| CA178961A | Spray gun | |
| US1253245A | Spray-gun. | |
| US1221861A | Spray-gun. | |
| CA112329A | Spraying nozzle | |
| US915180A | Spraying-nozzle. | |
| CA105593A | Spraying nozzle | |
| US858811A | Spraying-nozzle. |