Bizarre Patents
Pizza Pie With Concentric Rings of Crust
A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.
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| Number | Title | Issue Date |
| 4318108 | Bidirectionally focusing antenna A transmission/reception antenna for electromagnetic energy of a selected wavelength. The antenna features a central radiation-effective expanse which, in the case of transmission, functions as a driven element, and in the case of reception, functions as ... | 03/02/1982 |
| 4234844 | Electromagnetic noncontacting measuring apparatus A noncontacting apparatus and method for following the changes in impedance of a substance located within a specified investigation zone. A bidirectionally focused electromagnetic beam, having a pair of foci, is aimed with one of its foci located adjacent... | 11/18/1980 |
