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SubjectRe: Versioning file system
Jan Harkes wrote:

>On Sat, Jun 16, 2007 at 04:12:14AM -0600, Jeffrey V. Merkey wrote:
>
>
>>Jeffrey V. Merkey wrote:
>>
>>
>>>over). There's also another patent filed as well. It's a noble
>>>effort to do a free version, but be aware there's some big guns with
>>>patents out there already, not to mention doing this is complex beyond
>>>belief.
>>>
>>>
>>I reviewed your sample implementation, and it appears to infringe 3
>>patents already. You should do some research on this. ~~~~
>>
>>
>
>First of all, you are responding to someone in the UK, I thought they
>didn't even have software patents over there. Second, I didn't see any
>implementation, just a high level description. Finally advising anyone
>(who is not an actual patent lawyer that could correctly interpret the
>language and scope of a patent) to go search out patents seems pretty
>bad advice. That can only result in not even attempting to research some
>potentially new and innovative approach.
>
>Researching prior published work in the area is considerably more
>helpful. Especially when something is complex beyond belief it has
>probably attracted various researchers over time and there are most
>likely various different solutions that have been explored previously.
>Such existing work can form a good basis for further work.
>
>Finally, even if there are patents they could be too limited in scope,
>overly broad, can be invalidated due to prior art. It may also be
>possible that a patent holder has no problem granting a royalty free
>license for a GPL licensed implementation.
>
>Jan
>
>
>
>
When you get into the recycling issues with storage, the patents come
into play. Also, using the file name to reference revisions is already
the subject of a patent previously filed (I no longer own the patent, I
sold them to Canopy). There is a third one about to be issued.

The patents are:
*
6,862,609
**6,795,895

and this one about to be issued:

http://www.wipo.int/pctdb/en/fetch.jsp?LANG=ENG&DBSELECT=PCT&SERVER_TYPE=19&SORT=1211506-KEY&TYPE_FIELD=256&IDB=0&IDOC=1205953&C=10&ELEMENT_SET=IA,WO,TTL-EN&RESULT=1&TOTAL=3&START=1&DISP=25&FORM=SEP-0/HITNUM,B-ENG,DP,MC,PA,ABSUM-ENG&SEARCH_IA=US2005045566&QUERY=%28IN%2fmerkey%29+

The last one was filed with WIPO and has international protection, UK
included.

Jeff

*

Jeff
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