Patents: Innovation Nation
An interesting view on patents from Judge Posner:
"In Posner’s view, many patents are unnecessary. Patents, he believes, are important for drug companies that spend hundreds of millions of dollars bringing a new drug to market — a drug that can easily be copied by a competitor. Without the protection that a patent affords, pharmaceutical companies would have far less incentive to come up with new drugs." (from New York Times)
In another article that discussed Posner's view on patents: "Why there are too many patents in America" (from The Atlantic)