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 |
| 5917779 | Transformerless LED driving circuit A transformerless oven timer which uses a 20 pin microcontroller connected to light emitting diodes. The microcontroller has 2 Kbytes of 8 bit read only memory and has software etched therein. The microcontroller can transfer power and voltage to the ligh... | 06/29/1999 |
| 5886430 | Refrigerator ice door delay circuit Disclosed is an electronics device for use with a refrigerator/freezer for controlling the dispensing of ice cubes by an ice auger through a door flap when a cradle is pressed. The electronics device comprises a solenoid in operative connection with the d... | 03/23/1999 |
| 5684488 | Rearview mirror mounted detection signal sensor system A speed detection signal sensor system for use with a vehicle. The system includes a signal sensing device positioned in a housing assembly. The housing assembly includes a reflective portion such as a mirror. The sensing device is positioned between the ... | 11/04/1997 |
