| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Animal care | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Electric switches | |
| #5 | Planting | |
| #6 | Supplying fuel to combustion device | |
| #7 | Air-conditioning | |
| #8 | Domestic stoves | |
| #9 | Heat-exchange device details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Perry S | 28 |
| #2 | Klein Gustav | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3217694A | Fowl watering apparatus | |
| US3139858A | Warm air brooding system | |
| US2061712A | Brooder | |
| US2011684A | Combination feed trough and drinking fountain | |
| US2031723A | Drinking fountain | |
| US1888428A | Ventilating device | |
| US1926295A | Ventilation | |
| US1957971A | Ventilator | |
| US1918653A | Egg cleaning machine | |
| US1894278A | Adjustable feeder | |
| US1912085A | Poultry roost | |
| US1856963A | Manifold | |
| US1995213A | Brooder house | |
| US1974116A | Auxiliary heater for brooders | |
| US1808364A | Brooder | |
| US1592377A | Colony brooder | |
| US1708449A | Multiple-deck incubator | |
| US1474599A | Seed-sowing device | |
| US1554866A | Fuel-feed control | |
| US1200387A | Brooder. |