> It is one of these things that after you use it you wonder why everyone hasn't... | Hacker News

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brianwawok on March 21, 2016 | parent | context | favorite | on: iPhone SE

> It is one of these things that after you use it you wonder why everyone hasn't copied it yet.

Patents are very possible

geon on March 21, 2016 [–]

Does IBM have a patent for the hardware version of it?

acveilleux on March 21, 2016 | [–]

This is yet another invention from PARC that was marketed/finished outside of Xerox.

The patent was initially filed in 1990 and granted in 1996. So it should have expired in 2013. It seems to be owned by Lexmark (which was owned by IBM.)

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