EP1452071A4

Microwave packaging with indentation patterns

Abstract

Indentation patterns are scored in microwave packaging materials to enhance the baking and browning effects of the microwave packaging materials on food products. The indentation patterns provide venting to either channel moisture from one area of the food product to another, trap moisture in a certain area to prevent it from escaping, or channel the moisture completely away from the food product. The indentation patterns cause the microwave packaging material underneath a food product to be slightly elevated above the cooking platform in the base of a microwave. The indentation patterns lessen the heat sinking effect of the cooking platform by providing an air gap for insulation. Elevating the base of the microwave packaging material further allows more incident microwave radiation to propagate underneath the microwave packaging material to be absorbed by the food product or by microwave interactive materials in the microwave packaging material that augment the heating process.

Term

Term ended

Projected expiry passed 5 November 2022, 3.9 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

Every citation, both ways

Citations
DocumentRelationOfficeCategoryCited duringRelevant claims
WO0130657A2CitesWorld Intellectual Property Organization (WIPO)XSearch report1,2,4,8,12,13,16,17,22,23,31,32,35,36,42,59,60,63,64,69,70,78,79,82,89,92,95,96,100,101
EP0356825A2CitesEuropean Patent Office (EPO)ASearch report–
EP0365729A2CitesEuropean Patent Office (EPO)XSearch report1-5,7-10,22,23,31-36,42-47,49,51,52,54-57,69,70,78-83,93,94
US4777053ACitesUnited States of AmericaASearch report–
US5220143ACitesUnited States of AmericaXSearch report1-4,7,10,22-27,32-38,43-45,51,53,54,57,69-74,78-85,93,94
US6150646ACitesUnited States of AmericaASearch report–
WO8908549A1CitesWorld Intellectual Property Organization (WIPO)XSearch report1,2,7-9,12,14,16,18,22,23,42,54-56,59,61,63,65,69,70,92
WO9615703A1CitesWorld Intellectual Property Organization (WIPO)ASearch report–
WO9615958A1CitesWorld Intellectual Property Organization (WIPO)XSearch report1,2,4,7,8,12,22,23,32,43,44,51,54,55,59,69,70,93-95
EP0365729ACitesEuropean Patent Office (EPO)–––
WO8908549ACitesWorld Intellectual Property Organization (WIPO)–––
WO0130657ACitesWorld Intellectual Property Organization (WIPO)–––
WO9615958ACitesWorld Intellectual Property Organization (WIPO)–––
WO9615703ACitesWorld Intellectual Property Organization (WIPO)–––
EP0356825ACitesEuropean Patent Office (EPO)–––