On Mar 29, 2005, at 4:42 PM, Lawrence Rosen wrote:

Geir Magnusson wrote:
The Apache License says in
section 3 "Grant of Patent License"  :
<snip>
I read this to mean that if I make a derivative work, I have no reason
to believe that the patent license granted by the contributor to the
original work applies to me and my derivative work.

I read it the same way. Not only that, but I read the patent grants in all
other open source licenses the same way. A copyright license to create
derivative works doesn't mean you get a patent license for whatever
derivative works strike your fancy.

Reading carefully again, I'm still confused. I realize that there is a nuance noted in another message on this thread because the Apache License uses the term "patent claims" and I don't grok the subtly. Is that a term of art for what non-lawyers would call "patents"? I didn't realize that there were sub-licensable parts to a patent.


But if we can put that aside for the moment I believe that the last sentence means

"The copyright license to create derivative works of a work with a patent license doesn't mean you get that same patent license for your derivative works".

or

"The patent license granted as part of the Apache License to a Work doesn't apply to derivative works"

Yes?

The natural question about patches and enhancements to the work in the project was I thought answered by Jeffrey, in that continued development of the Work continues to be the Work to which the patent license was granted.

geir

--
Geir Magnusson Jr                                  +1-203-665-6437
[EMAIL PROTECTED]


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