Comment Dying big companies, too (Score 1) 42
The vast majority of patent trolls are typically very small entities that like to sue BIG companies for one obvious reason: Big companies have deep pockets.
It's not just patent trolls.
When a big technology company is in trouble, one thing they may do to try to stay alive is go through their portfolio of patents and sue everybody doing anything related to them. This is in the hope that they can pull in enough cash to stay alive a few more months, by finding actual infringement on discovery, or just provoking a patent cross-licensing-and-balancing-cash deal to make the suit go away.
About a decade ago I was on the receiving end of such a suit: My project had done some chips that included some new SONET functionality. Nortel was getting desparate and went after everybody doing SONET, so my project (and a few others) were related. I got called in to advise the lawyers on how what we did was different from the claims. (It was - drastically.) I hear that one ended up in a "swap and we pay some cash" settlement.
This was the only time I recall actually being asked to look at another company's patent on what we were doing. Companies - at least in the US - try to keep their engineers from looking at other patents, because knowing you're infringing triple. So we get to reinvent various wheels rather than raise the risk. That means one of the claimed advantages of patents - releasing recipies for the neat technology to general use after the patents expire - is about as bogus as the ever-extended copyrights.