Re: IPR Disclosure: The Trustees of Columbia University in the City of New York's Statement about IPR related to draft-ietf-nsis-tunnel-13

Right.

I went over the history and the QoS NSLP introduced the binding concept 
in early 2004, so 2.5 years before the patent application was filed. So, 
the QoS NSLP is not affected and most of the IPR itself is invalid. 
Whether the patent is valid when you apply the same published concept 
and technology when binging tunnel sessions instead of QoS sessions, I 
don't know.

http://tools.ietf.org/html/draft-ietf-nsis-qos-nslp-02

Moreover, the application was filed four months _after_ the document 
describing the binding for tunnels was approved as a WG item.

Since then the first actual technical changes to the spec were done in 
late 2008, two years after the patent application was filed.

Jukka

On 12/07/2010 12:57 AM, Roland Bless wrote:
> Hi Jukka,
>
> On 06.12.2010 20:32, Jukka Manner wrote:
>> Hi Roland, thanks for your detailed analysis. You are right that the QoS
>> NSLP would not necessarily included the binding concept had we known
>> Columbia had a hidden IPR on it. So, essentially the IPR also affects
>> the QoS NSLP. And the issue with RFC 2764 is pretty good, actually -
>> interesting how the same stuff gets patented years after publishing it
>> the first time. ;)
>
> Not quite. AFAIK it is a patent _application_, but not a valid patent
> yet. IMHO, RFC 2746 is a very close match and thus the patent should
> not be granted w.r.t. most of its claims.
>
> Regards,
>   Roland
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