Linked by jrincayc on Fri 15th Jul 2011 17:14 UTC
Legal Patent term calculation is complicated in the US because there are essentially two different systems and quite a few corner cases. Even with a list of patents, it can be tricky to determine when the patents are all expired. Since I am a computer programmer (and not a lawyer), I created a program to try and automate this. This paper discusses how patent term calculation works, and some results from a combination of hand and automatic term calculation for MP3, MPEG-2 and H.264.
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RE: European patents
by jrincayc on Sun 17th Jul 2011 15:10 UTC in reply to "European patents"
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I would love for someone to do the same thing for the European patents (and Japanese ...), but as for me, it took enough time just to do the US patents. I think I have spent around a 100 hours figuring out the patent law, fiddling with the patent information grabbing code, getting the patents in a usable form, and writing the article. (This doesn't count the time I spent writing the previous version before people on Wikipedia told me I needed fix my previous versions because I failed to take into account continuations and divisions )

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