A hot pad for absorbing energy in a microwave oven and heating articles in thermally conductive contact with the pad, comprises a flexible and conformable pad defining a plurality of individual flexible and conformable closed pockets. Each of the pockets is formed of a microwave-transmissive heat-resistant...http://www.google.es/patents/US4931608?utm_source=gb-gplus-sharePatente US4931608 - Microwave-heatable hot pad