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 |
| 5706891 | Gravel pack mandrel system for water-flood operations A gravel packed water-flood fluid injection mandrel is provided for a water-flood well which includes a side pocket having flow control device therein for injection of pumped water-flood fluid from the mandrel into a subsurface formation of interest. A gr... | 01/13/1998 |
