Torvalds Says Microsoft is Bluffing on Patents

An anonymous reader writes "Microsoft's aggressive defense of its intellectual property, which includes claims that Linux violates a number of its patents, is nothing more than "a marketing thing," according to Linus Torvalds, creator of the Linux kernel. "They have been sued for patents by other people, but I don't think they've — not that I've gone through any huge amount of law cases — but I don't think they've generally used patents as a weapon," Torvalds said. "But they're perfectly happy to use anything at all as fear, uncertainty and doubt in the marketplace, and patents is just one thing where they say, 'Hey, isn't this convenient? We can use this as a PR force.'""

Comments

Re:back to the kernel, Linus.

[Tony]

The patents involve Xenix. Look it up sometime, it may seem oddly familiar.

That's funny-- the patent lifetime is 20 years in the US. Since Microsoft sold it's derivative of AT&T's Unix to SCO[1] in 1987, it seems unlikely that the patents involve Xenix in any way.

Microsoft didn't really do any real research on Xenix. It was a pretty straight-forward 16-bit port of the AT&T source code, with lots of BSD code thrown in for flavor. This was a big deal mostly because they were getting Unix code to run on standard microprocessors. Once that was done, they licensed Xenix to SCO and a bunch of other companies, who ported it to their own platforms. Most of this was done in the early 80s. Back then, Microsoft wasn't applying for too many patents. And, since this was a port of existing code, there was little opportunity for "worthy" patents. If there were, they would've been granted over twenty years ago, and so would have expired by now.

Anyway, not to put too fine a point on it: it's extremely unlikely these patent threats involve Microsoft's port of AT&T's UNIX.

[1] SCO as in, "Santa Cruz Operation," not as in "We used to be Caldera, but wanted to confuse people into thinking we're Santa Cruz Operation."