That's stunning that (evidently) no one noticed the patents were for a physically impossible design. Was the legal battle even about the designs or more so for posturing?
Patents are broken. I give you: The Stick. https://patents.google.com/patent/US6360693 HN discussion: https://news.ycombinator.com/item?id=2102388 Also: we all owe license fees for using gravity. https://patents.google.com/patent/US6368227B1/en
https://www.newscientist.com/article/dn965-wheel-patented-in...