<P> Fidget spinners are toys not unlike yo - yo or other skill toys, designed to spin with little effort . A basic fidget spinner consists of a two - or three - pronged design with a bearing in its center circular pad . A person holds the center pad while the toy spins . They are made from various materials including brass, stainless steel, titanium, copper, aluminium, and plastic . The bearings are generally ceramic, metal (stainless steel or chrome), and some are hybrids--such as ceramic balls with stainless races and cages . Each fidget spinner also has two or more weights on the outside that make it spin faster and stay balanced . Bearings can vary to adjust for the design's spin time, vibration, and noise, causing unique sensory feedback . </P> <P> Being a kind of a flywheel of a gyroscope in principle, fidget spinners come with similar effects enabling a player to pull various tricks and stunts while forces of a gyroscope take hold . A fidget spinner can be balanced on top of fingers, thrown and caught, and so on . </P> <P> As of 2017, the patent status of the various fidget spinners on the market was unclear . </P> <P> Catherine Hettinger, a chemical engineer by training, was initially credited by some news stories to have been the inventor of the fidget spinner, including by media outlets such as The Guardian, The New York Times, and the New York Post . Hettinger filed a patent application for a "spinning toy" in 1993 and a patent was issued, but Hettinger allowed the patent to lapse in 2005 after she could not find a commercial partner . A May 2017 Bloomberg News article showed that Hettinger was not the inventor of the fidget spinner, and Hettinger agreed . </P>

Who owns the patent for the fidget spinner
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