QUOTE(GlassBeadGame @ Sat 9th January 2010, 2:34am)
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I hate it when articles claim a percentage increase based on an extremely low portion and don't even bother to state the overall numbers. Not told in the article is that 500,000 patents are filed each year. 800 cite Wikipedia, expressly against the rules. Surely of the 500,000 filed thousands are without merit, and this includes most or all those that cite Wikipedia, because serious applicants would follow the rules. Interpretation: a marginal number of bad applications cite Wikipedia. The total number of patents referring to Wikipedia is less than 1:600. Because the absolute number is so small a very few additional uses amounts to a huge percentage increase.
Oh, this is on another thread.
I have to say that in my limited experience, examiners cite it very frequently as a reference consulted--usually as general background. I would estimate that this number is in the double digits, but I've not had a hand in very many prosecutions.
I believe that this number only lists those issued with a reference to Wikipedia on the face of the issued patent, a much lower number.
If I were interested in arriving at such a statistic, I would do a randomized sample of file wrappers. The USPTO would probably cut me off before I could download enough histories to form a meaningful percentage, however.
Maybe not a terrible use of spare time...