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9 genius food-related inventions given to the world by women

From frozen pizza to flat-bottomed paper grocery bags, women inventors throughout history found it difficult to get the patents โ€” and the recognition โ€” they deserved. But these nine brilliant women, and their inventions, persevered and helped make the world of food what it is today. 1. Flat-bottomed paper bags Paper bags used to look more like envelopes or cones, and their design didn’t allow them to stand upright on a table, making checkout or doing just about anything with your bag of groceries nearly impossible. America’s bags got an upgrade in 1868 when cotton mill worker Margaret Knight invented a machine that made paper bags with a flat bottom. But credit for the design didn’t come easy. A man named Charles Annan saw her drawings and received a patent without giving Knight credit. The female inventor took Annan to court and after a legal battle earned her own patent…