If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.
I'm no lawyer, but this seems to be saying that if you sue anyone for breach of patent for something in apache, then you lose your patanet license
Basically, if you patent-sue (or counter-patent-sue) anyone because e.g. Apache is violating one of your patents, then you're not allowed to use any patents being used in Apache.
So if Apache is using patented protocol X, and you sue them because you think they're infringing on your patented file format Y, then you are no longer granted use of patented protocol X anymore. You could still use Apache, as long as you don't use patented protocol X.
Interesting... (Score:4, Interesting)
I'm no lawyer, but this seems to be saying that if you sue anyone for breach of patent for something in apache, then you lose your patanet license
Re:Interesting... (Score:2)
So if Apache is using patented protocol X, and you sue them because you think they're infringing on your patented file format Y, then you are no longer granted use of patented protocol X anymore. You could still use Apache, as long as you don't use patented protocol X.
I think.
--Dan