Apparatus for and method of controlling heating of a foodstuff using microwave energy having a food package with a microwave shielding layer containing a plurality of apertures therein sized to permit entry of both evanescent microwave energy and propagating microwave energy into the interior of the...http://www.google.de/patents/US6259079?utm_source=gb-gplus-sharePatent US6259079 - Microwave food package and method
