There are some videos of ICT2008 at
europa.eu where the CEO of TomTom says that they spent more money on patent litigation in 2005 than anything else combined.
media.ffii.org has this copy. At the end of the clip they also talk about patents. The CEO says: “Once we were successful, the part of technology and the cost and the amount of down again. I remember clearly in 2005, we spent more money on patent disputes, patent fights than all our technology development put together.” █