US Patent 7537119 Stackable container apparatus and methods

Stackable container apparatus and methods are disclosed. In one embodiment, a container assembly includes a lid portion having a plurality of first raised members projecting outwardly from an upper surface, at least some of the first raised members cooperatively forming a plurality of first receiving areas, and a base portion coupleable to the lid portion and forming a containment space, the base portion having a plurality of second raised members projecting outwardly from a lower surface, at least some of the second raised members cooperatively forming a plurality of second receiving areas, the second receiving areas being adapted to fittingly receive a second plurality of first raised members of a like container assembly positioned below the lower surface, and the first receiving areas being adapted to fittingly receive a second plurality of the second raised members of another like container assembly positioned above the upper surface