This post is more than slightly surreal: a new book on data mining by two IBM employees includes the following paragraph in its introduction:
On the other hand, if you want to take our methods and create your own software solution to sell as a product, while we applaud your initiative and enthusiasm, you really should first discuss this with suitable representatives from IBM business development. IBM has sole ownership of all the intellectual property described in this book, all of which is protected by U.S. patents, both granted and pending. All rights reserved, etc., etc.
As one of the commenters says, that's radioactive: I'd stop reading the book right away for fear of later being sued for infringement.