Patent Number: 6,251,451

Title: Microwavable package

Abstract: The disclosed invention provides a microwavable package for a food product. The package comprises a base with an active microwave energy heating element to support the food product. The active microwave heating element comprises energy collecting resonant loops, tuned structures, and transmission lines to collect incident microwave energy and redirect it to other parts of the food product. The microwave package also includes a cover comprising a microwave energy interactive layer including one or more apertures within the cover. The apertures promote localized fields to promote browning of the food product in the local areas around the apertures. The cover may also comprise a susceptor layer that is heated in localized areas around the apertures due to the fields promoted by the apertures and impingement by incident microwaves energy through the apertures, thereby providing localized browning of the food product.

Inventors: Zeng; Neilson (Ontario, CA)

Assignee: Graphic Packaging Corporation

International Classification: B65D 81/34 (20060101); B65D 081/34 ()

Expiration Date: 06/26/2018