HotSmart

No , I would not say Hot S mart plates are "stay warm plates" they stay hot ; even after 3o minutes it is difficult to withstand the heat on the back of your hand however they can be handled safely with the bare hands by the rim. the rim remains cool (believe it or not). They are manufactured in bone china and have a specially developed core that absorbs lots of microwave energy and release it as thermal energy slowly, at a controlled rate to keep your food hot (They use the Stefan-Boltzmann law) . I can call them HI-TEC plates but then... who is looking for hi-tec plates on the WWW? Amazon.com I will never call my invention stay warm plates ; it would be unfair however if you do not like your food very hot, do not preheat them for an entire minute ( They require just one minute preheating ) or simply move your food away from the center which is the hottest place, look at the thermogram that we took with a special camera). InstaHot 30 min plus HotSmart Plates

(Photo no longer available) Glued with Aremco 315 epoxy resin. There is a gap between the heater and the plate, the thickness of the heater is about?". I call this embodiment "Hanging from the ceiling" (HFC), since the heater will be actually hanging (Like a ceiling fan) supported just at the center. ( Click to enlarge). Notice the cover or base at the upper right hand side. For this prototype it was made out of ceramic, it should be made out of the same material as the plate (An excellent light weight material by CORELLE ( TM) ). Many other materials can also be used. http://www.heatretentiveplates.com/ The technology is in front of them, they will eventually have to explain their board of directors and the stockholders why they have not adopted it, it is not going away.