Patent on Toast. yep, that's right.
This patent was issued in 2000 (yep 2000 A.D). It seemed like an amusing and light-hearted segue from the recent seriousness of patent lawsuits;
1. A method of refreshing bread products, comprising:
a) placing a bread product in an oven having at least one heating element,b) setting the temperature of the heating elements between 2500 F. and 4500 F., andc) ceasing exposure of the bread product to the at least one heating element after a period of 3 sec. to 90 sec.
Link: Patent on toast
Presented to you, without comment or judgement.