Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 5813363 | Automatic liquid dispenser for animals An automatic dispenser for providing animals with cool fresh liquid (e.g., water). The feeder has self-cleaning and self-refilling features that provide periodic replacement of hot, stale or dirty fluid with cool fresh refills. Solenoid valves are control... | 09/29/1998 |
