I recently came across a new patent, does anyone know the impact of the 
following patent on squid?

http://tinyurl.com/ym7xq8

US 7,103,794 B2

It speaks about network cache objects in a general form and appears to apply to 
Squid. 

The key claim is "receiving a set of network objects in response to a first 
request to a server from a client; and maintaining said network objects in a 
cache memory in a cache engine, said cache engine connected via a network to 
the server and the client, said cache memory including mass storage; wherein 
said step of mainting includes steps of recording said network objects from 
said cache memory, so as to substantially minimizes a time required for 
retrieving said network objects from said mass storage. "

There are a series of other cliams that also appear to apply. The filing date 
predates squid version 2.0, but I hope Squid version 1 contains software that 
is considered prior art and renders Squid immune.

A quick search through the archives shows that Squid has dealt with other 
claims in the past.

Bob Ault




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