| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Machines | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Animal care | |
| #2 | Separation | |
| #3 | Unspecified technologies | |
| #4 | Air-conditioning | |
| #5 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stoterau Donald A | 3 |
| #2 | Lippi Dominic M | 3 |
| #3 | Cochran Donald E | 3 |
| #4 | Rue Edward O | 2 |
| #5 | Fredeen Arthur G | 2 |
| #6 | Willis Tellefson | 1 |
| #7 | Slieter Allan R | 1 |
| #8 | Kettlewell Meredith G | 1 |
| #9 | Cleary Robert J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3322054A | Ventilation device for building | |
| US3111215A | Egg conveyor | |
| US3075495A | Automatic multi-tier poultry feeder | |
| US2997177A | Automatic water softening device | |
| US2753047A | Filter | |
| US2678026A | Pig feeder | |
| CA675953A | Poultry feeder | |
| CA856091A | Silo unloader suspension | |
| CA523313A | Pig feeder | |
| CA667474A | Automatic multi-tier poultry feeder | |
| CA865456A | Combination feeder and waterer for hogs | |
| CA778139A | Ventilation device |