Linked by Thom Holwerda on Sun 17th Jul 2011 20:58 UTC, submitted by fran
Linux It's strange. Microsoft has been patent trolling the heck out of the Linux kernel for a long time now, and is still using these patents against Android today in its protection money scheme. However, as illustrates, Microsoft makes quite a few contributions to the Linux kernel. Shouldn't this invalidate their patent claims?
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RE: Comment by Drumhellar
by Slambert666 on Mon 18th Jul 2011 04:36 UTC in reply to "Comment by Drumhellar"
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However, if their Hyper-V related changes were adapted to make the Linux kernel run better on competing virtualization platforms, and they sued companies that distributed Linux for use on competing platforms, then, yes, their contributions should invalidate their patent claims.

Maybe morally, but not legally.
There are no patent indemnification requirements in GPL v.1 and v.2.

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