Patents by Inventor Sandra M. Tsontzidis

Sandra M. Tsontzidis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10683156
    Abstract: A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: June 16, 2020
    Assignee: Graphic Packaging International, LLC
    Inventors: Laurence M. C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
  • Publication number: 20170015486
    Abstract: A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Inventors: Laurence M.C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
  • Patent number: 9493287
    Abstract: A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: November 15, 2016
    Assignee: Graphic Packaging International, Inc.
    Inventors: Laurence M. C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
  • Patent number: 8247750
    Abstract: A construct for preparing a food item in a microwave oven includes a plurality of heating regions including an inner heating region and an outer heating region. The inner heating region includes a susceptor including a plurality of annular microwave energy transparent areas, and the outer heating region includes a plurality of susceptor projections extending radially from the susceptor of the inner heating region.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 21, 2012
    Assignee: Graphic Packaging International, Inc.
    Inventors: Laurence M. C. Lai, Sandra M. Tsontzidis, Tim Bing Liu, Angela Chen Li
  • Publication number: 20100006566
    Abstract: A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Inventors: Laurence M.C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
  • Publication number: 20090246332
    Abstract: A construct for preparing a food item in a microwave oven comprises a plurality of heating regions including an inner heating region and an outer heating region. The inner heating region comprises a susceptor including a plurality of annular microwave energy transparent areas, and the outer heating region comprises a plurality of susceptor projections extending radially from the susceptor of the inner heating region.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Inventors: Laurence M.C. Lai, Sandra M. Tsontzidis, Tim Bing Liu, Angela Chen Li
  • Patent number: 7319213
    Abstract: Indentation patterns in microwave packaging materials can enhance the baking and browning effects of the microwave packaging materials on food. The indentation patterns can 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 can 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 can 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.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: January 15, 2008
    Assignee: Graphic Packaging International, Inc.
    Inventors: Sandra M. Tsontzidis, Laurence M. C. Lai, Neilson Zeng
  • Patent number: 6919547
    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.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: July 19, 2005
    Assignee: Graphic Packaging International, Inc.
    Inventors: Sandra M. Tsontzidis, Laurence M. C. Lai, Neilson Zeng
  • Publication number: 20030085224
    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.
    Type: Application
    Filed: November 7, 2001
    Publication date: May 8, 2003
    Inventors: Sandra M. Tsontzidis, Laurence M.C. Lai, Neilson Zeng