Method of Swinging on a Swing (US Patent 6,368,227)

TL;DR — The patent granted in 2002 for swinging sideways on a swing, filed by a five-year-old’s father to show how lax patent examination had become.

How much weight it carries: A real granted patent and a famous example of patent-system absurdity; the USPTO later re-examined it.

Where this came from

• Will Manidis’s “most underrated PDF” thread, July 2023 — routing record: The Most Underrated PDF on the Internet (July 2023)

8 pages. A copy is archived locally against link rot; the header links the original source.