[ipv6hackers] SEND implementation Patent

Richard Barnes richard.barnes at gmail.com
Sat Mar 10 15:57:20 CET 2012

That's also just an application, not a granted patent.  So there's
nothing enforceable unless it gets granted.

Even if it is granted, any claims related to SEND would seem to be
trivially invalid, given that the patent was filed in 2007, while RFC
3971 is dated 2005:

There is also an IPR notification from Ericsson on RFC 3971, but they
assert that they will not enforce against implementors of the

I would say that there's nothing to worry about here.


On Sat, Mar 10, 2012 at 5:09 AM, Ahmad Sadeh <ahmad.sadeh at gmail.com> wrote:
> Dear All,
> SEcure Neighbor Discovery (SEND) is a Standards Track which is defined in
> RFC 3971.
> It is a subject to patent US 2008/0307516 A1 (
> http://www.freepatentsonline.com/y2008/0307516.html )
> My question is how RFCs implementations become Patents while it is open for
> all? What are the consequences of having patents for network protocols?
> We implement SEND for Windows (WinSEND) (
> http://www.hpi.uni-potsdam.de/meinel/forschung/security_engineering/ipv6_security/winsend.html).
> Could we have a patent for "WinSEND" or even make it a product?
> Thanks,
> Ahmad AlSadeh
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