Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| D490644 | Rectangular cookie baking sheet | 06/01/2004 |
| D490643 | Square cake baking pan | 06/01/2004 |
| D490268 | Round cake baking pan | 05/25/2004 |
| D489568 | Jellyroll baking pan | 05/11/2004 |
| D489567 | Rectangular utility baking pan | 05/11/2004 |
| 6544669 | Cryogenic treatment of cookware and bakeware A method of making cookware and bakeware having a stick resistant and mar resistant cook surface comprising the steps of providing a cooking utensil having a cook surface, and cryogenically treating the cooking utensil at one or more selected temperatures... | 04/08/2003 |
| 6427904 | Bonding of dissimilar metals A method of joining dissimilar metals includes the steps of applying a thin layer of pure aluminum to a surface of at least one of the dissimilar metals to be joined. The pure aluminum is applied by electroplating or by a PVD technique to prevent formatio... | 08/06/2002 |
| 6360423 | Stick resistant coating for cookware A method for making a stick resistant cook surface or cooking vessel having the stick resistance in which a hard substrate metal is buffed/polished to a high luster surface finish of less than 20 micro inches and then coated with a layer of zirconium nitr... | 03/26/2002 |
| 6267830 | Method for making a copper core five-ply composite for cookware A 5-ply composite metal product for the manufacture of cookware is provided which contains a relatively thick copper core having relatively thin layers of pure aluminum bonded between outer layers of stainless steel. The cooking vessels made therefrom may... | 07/31/2001 |
| 6109504 | Copper core cooking griddle and method of making same A composite griddle plate is provided having a heavy copper core which is diffusion bonded to one or more outer plates of stainless steel, carbon steel or titanium. The copper cored composite is made by explosion bonding the outer metal plates to the copp... | 08/29/2000 |
