When were Lays ketchup chips invented?

The chinese had a sauce called ket-siap, which was a pickled fish sauce, this was brought west and the first reference in western print was around 1690. Tomatoes were added to this watery sauce sometime in the 18th century and marketing may have begun by F & J Heinz Co. in 1876. Several recipes exist predating Heinz' marketing of tomato ketchup, made from various spices and fruits.