Acceptable patent license for free software?

[Wiebe van der Worp]

Matthias-Christian Ott wrote:
> Simon Josefsson <simon at josefsson.org> wrote:
> 
>> Hi!  I'm writing guidelines for IETF document authors on how to achieve
>> free software compatible copyright and patent licenses [1].  The
>> copyright area is rather well understood, I think; pick any liberal
>> license that is compatible with all (reasonable) free software licenses
>> and you are done.

...

> In my opinion you should ask an expert lawyer, because copyright and
> patent right may be different in different countries. Or are you just
> writing for the USA?

You may want to contact Reinier Bakels (reinier a t vrijschrift d o t org).