It's not about who is selling which products, we are talking about patents, thus about inventions and innovations.
Apple were the first company to introduce multi-touch to mobile phones. But multi-touch was around for decades, and so was the "pinch to zoom" gesture.
They have no right to patent it just because they've used it in a phone.
And to answer your question, e.g. Mitsubishi's DiamondTouch used "pinch to zoom".
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It is one of many patents, but I'm looking at the patents that Apple used in their patent war.
They showed it in the courtroom. The DiamondTouch is a huge screen. So people have to use 2 hands to expand/contract a window.
They also showed an earlier small form-factor pinch to zoom attempt, but it performed very poorly (It's more like an asynchronous gesture).
iPhone has a small screen, so you have to pinch. But in Apple's case, it's extremely smooth and tracks the fingers closely. That's why people loved the original iPhone.
The jurors saw all the presentations and decided that Apple's invention stands.
Of course, they were dominating the mobile market for years, and that's what Apple doesn't like. They are trying to kill-off a competitor.
Don't be silly. Do you know how big Samsung is ? This lawsuit won't kill-off Samsung. It doesn't make sense for Apple to serve the low margin folks. They want the high margin. Samsung is a volume player. Apple just want Samsung to pay up for their R&D effort.
EDIT:
If you look at Samsung's play...
They paid Microsoft for Android infringement, and yet refuse to settle with Apple despite the latter's contribution to the smartphone world.
They destroyed email before the trial, and circulated inadmissible evidence to try to influence the public.
If they had not done all these, the jurors may not find Samsung infringe on the patents willfully.
Samsung have themselves to blame for this outcome. A willful infringement is much more expensive than a regular infringement. A license should be even cheaper.