Making sure that if someone wants a popular color combination, they can have it without going to the competition, is common company behavior.
Apple did the same thing with the Apple Watch. Samsung had already done a pink gold watch with white strap a few months before Apple even revealed their watch. Should Apple have not offered the same color combination simply because Samsung did one first? Of course not.
Ditto for colors on the iPhone 5C. Xiaomi was killing it in China selling colorful phones six months before Apple's 5C was ever revealed. Should Apple have ditched the 5C colors just because Xiaomi was already selling such? Of course not.
Hopefully you're not also shocked that shirt and car makers commonly copy each other's colors and styles!
They showed several target devices as examples in that patent's illustrations, which was about making smart watchbands that could attach to various devices, IIRC.
Speaking of smartwatches, Samsung patented a smartwatch rotating bezel and digital crown almost a year before even the iPhone came out, much less the Apple Watch eight years later.
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You mean like the way Apple copied the Android keyboard, first with things like the voice input symbol and location, and then recently by changing the letter case to match current shift mode?
No they didn't.
They both copy whatever sells. Apple repeatedly claimed that 4" was the perfect phone display size, until they finally realized that Samsung was reaping tons of sales with phablets, and decided they wanted part of that market.
Yet another person who obviously never read the document, which was a comparison after the Galaxy came out, was a lot about not copying Apple too closely, and many of whose suggestions were not implemented anyway.
As for interesting trial copying revelations, one was about the origin of the iPad mini. Jobs claimed we'd need sandpapered down fingers to use a tablet smaller than the original iPad. Then an Apple VP used a Samsung mini tablet and realized Jobs was wrong.
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That's what Apple does when they refuse to pay patent royalties for years, figuring they can get the price down via litigation.