The question still remains even with prior art, who is willing to sue
MailBlocks to get these patents invalidated? Plus how long will the
process take if MailBlocks is willing to go all the way to Supreme Court?
On the other hand are these patents enforceable outside the US?
Patents are typically not very hard to challenge as I recall. I think that
they may be challenged simply by providing prior art to a patent
examiner. Sure, it can go through the courts as well but I think given
prior art, a patent examiner is capable of invalidating the patent as well.
It has been awhile since I looked at this stuff so you would want to check
the accuracy but that is what I recall.
-Art
--
Art Pollard
http://www.lextek.com/
Suppliers of High Performance Text Retrieval Engines.
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