Prior art is not as easy to use as a defense as people usually think. On that topic, I found the talk by Andew Tridgell quite interesting: " You need to learn

Prior art is not as easy to use as a defense as people usually think. On that topic, I found the talk by Andew Tridgell quite interesting: " You need to learn to read patents. And that doesn’t mean just the abstract. In fact, many people in the free software community, a lot of discussions on sites like Slashdot, people stop at the title. And they think that based on the title they can say "Ah, that was done by the FooHits Corporation in 1925, therefore it’s not a problem". Right? And it doesn’t work like that. You can’t stop at the title, you can’t just stop at the abstract. " http://news.swpat.org/2010/03/transcript-tridgell-patents/ http://news.swpat.org/2010/03/transcript-tridgell-patents/