Tupperware is a kitchenware brand known for food-storage products, beginning with chemist Earl Tupper’s airtight-seal idea in the 1940s and the Wonderlier Bowl. The brand says its products have also included microwave cooking solutions and describes a continuing focus on product innovation, food preservation, and reducing waste. Its brand and related operating assets are now owned by an investor group, while independent consultants and distributors and retail partners remain part of its sales network.