| Hive - With external food supply | ||||
|---|---|---|---|---|
| Patent Number | Date | Inventor | Description | |
| 00178765 | 1876 | Hamilton | Bee feeder | |
| 00784072 | 1905 | Roberts | Bee feeder | |
| 01251583 | 1918 | Saunders | Bee feeder | |
| 02193741 | 1938 | Roberts | Bee feeder | |
| 02496285 | 1950 | Goebel | Feeder for honeybees | |
| 03842457 | 1974 | Johnson | Bee feeder | |
| 03835487 | 1974 | Grigg | Bee feeder for hives | |
| 04333189 | 1982 | Mentzer et al. | Automatic bee feeder | |
| 05509846 | 1996 | Kueneman et al. | Disposable biodegradable beehive | |