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 |
| 7238057 | Cigarette-lighter assembly connector with indicator for verifying proper insertion A cigarette-lighter assembly connector includes an indicator, particularly a light source, that can be activated when the connector is sufficiently inserted into a cigarette-lighter socket to indicate to the user that a portable electronic device can be safely opera... | 07/03/2007 |
| 6984138 | Housing for cigarette lighter adapter or accessory adapter plug A housing for a Cigarette Lighter Adapter (CLA) or accessory adapter plug facilitates insertion of the plug into a CLA or accessory adapter receptacle. In one embodiment of the invention, the housing is formed in a generally cylindrical shape with an expanded diamet... | 01/10/2006 |
| 5934780 | Polarized light irradiation device for purposes of optical alignment of an alignment layer of a liquid crystal cell element A polarized light irradiation device in which formation of an alignment layer of a liquid crystal cell element is enabled by optical alignment is obtained by the fact that light which contains UV light and which is emitted from a discharge lamp is focused... | 08/10/1999 |
