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 |
| 5403125 | Method and apparatus for providing underground barrier An apparatus, method and system for installing water impervious barrier walls underground and particularly in levees. A mobile trailer movably mounted on rails carries upstanding front and rear masts and a carrier bar therebetween that is power driven up ... | 04/04/1995 |
| 5129761 | Pipe placement method and apparatus A method and associated apparatus are shown for highly efficient manipulation of multiple pipe sections within the close confines of a tunnel formation to construct an underground conduit. Overall production is improved by adapting pipe section transport ... | 07/14/1992 |
