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: The Patent Librarian's NotebookPringles Aren't Potato Chips
Pringles were invented more than forty years ago by Alexander Liepa, a food scientist at Cincinnati-based P&G. Liepa received a patent (3396036) on August 6, 1968 for a "potato food product" made from a dough consisting of 21-46 percent potato solids, 1-15 percent milk solids and 53-73 percent water. He later patented additional improvements to the formula (3998975) and the design of a machine for molding the dough into the product's trademark concave shape (3608474). (Also see trademark application 75207172.)
Happy 40th birthday, Pringles!
Full post as published by The Patent Librarian's Notebook on July 05, 2008 (boomark / email).
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