A heat insulating paper cup having an improved seal. The cup can include a body member having an inside surface and an outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated (or in some instances partially coated) on its outside surface with...http://www.google.fr/patents/US6676586?utm_source=gb-gplus-shareBrevet US6676586 - Heat insulating paper cups
