Mailinglist Archive: opensuse (3354 mails)

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Re: [opensuse] Double Linked List patented in 2006
  • From: Anders Johansson <andjoh@xxxxxxxxxx>
  • Date: Mon, 19 Mar 2007 22:29:52 +0100
  • Message-id: <200703192229.52479.andjoh@xxxxxxxxxx>
On Monday 19 March 2007 21:37, Ted Harding wrote:
> Now, while the standard "doubl{e|y} linked list described
> at [1] above has been around since the year dot (or shortly
> thereafter), and is found everywhere, the second kind described
> at [2] above (though it has undoubtedly been implemented many
> times) could conceivably be considered sufficiently novel to
> provoke a patent application!

It certainly fails the "obvious to one skilled in the field" test

> So my question, for clarification, is: Can anyone supply any
> reference of sufficiently long standing to demonstrate that
> the second kind of "double linked list" at [2] above is well
> established prior art?

They are sorting the list in various ways, and storing the previous results so 
they don't have to do them all over again when they need them again. If

struct foo *next, *prev

is old hat, why would

struct foo *next[100], *prev[100]

be a patentable invention.

They are storing various paths in traversing a tree or graph. There is 
absolutely nothing about that that isn't patently (if you'll pardon the 
pun) "obvious to one skilled in the field"

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