[IronPython] Patent concerns

[M. David Peterson]

I am not a lawyer, but I can read,

(B) Patent Grant- Subject to the terms of this license, including the
> license conditions and limitations in section 3, each contributor grants you
> a non-exclusive, worldwide, royalty-free license under its licensed patents
> to make, have made, use, sell, offer for sale, import, and/or otherwise
> dispose of its contribution in the software or derivative works of the
> contribution in the software.


In section 3,

(B) If you bring a patent claim against any contributor over patents that
> you claim are infringed by the software, your patent license from such
> contributor to the software ends automatically.



In summary: We won't sue you, if you don't sue us.  If you do, then the
gloves are off.

And let me reiterate: I am not a lawyer.

On 5/31/07, John Messerly <jomes at microsoft.com> wrote:
>
> Hi,
>
> I am definitely not a lawyer, but I think this question is addressed in
> the Microsoft Permissive License (
> http://www.microsoft.com/resources/sharedsource/licensingbasics/permissivelicense.mspx).
> See section 2.b, "Patent Grant".
>
> Cheers,
>
> John
>
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:
> users-bounces at lists.ironpython.com] On Behalf Of Sanghyeon Seo
> Sent: Wednesday, May 30, 2007 6:10 PM
> To: Discussion of IronPython
> Subject: [IronPython] Patent concerns
>
> Hi,
>
> Recently on jvm-languages list, which is an interest group surrounding
> language implementation for the JVM, Frank Wierzbicki from Jython
> project expressed the concern that Microsoft may hold a lot of patents
> related to IronPython, so he is reluctant to look at the source code
> even if it is open-sourced.
>
> http://groups.google.com/group/jvm-languages/msg/0d16a82b53233a72
>
> Apparently, this seems to be a widespread concern. I think this is a
> pity, since in my opinion IronPython has a lot of good ideas that
> would benefit language implementations on JVM.
>
> So, please answer if possible. What patents Microsoft hold, related to
> IronPython?
>
> --
> Seo Sanghyeon
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>



-- 
/M:D

M. David Peterson
http://mdavid.name | http://www.oreillynet.com/pub/au/2354 |
http://dev.aol.com/blog/3155
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