NY Times: In the last five years, IPNav has sued 1,638 companies, according to a recent report by RPX, a patent risk management provider, more than any other entity in the patent field. “To get companies to pay attention, in some percent of the market, you need to whack them over the head,” Mr. Spangenberg said. “In our system, you can’t duel, you can’t offer to fight in the street, which would be fine with me.”
This combat readiness has made Mr. Spangenberg, a high-school dropout raised in Buffalo, very rich. He earns about $25 million a year, he says, which is at least a couple of million more than the country’s top bank executives. Until recently, he lived in a 14,000-square-foot home in Dallas; it is now on the market for $19.5 million. He often flies on a company jet, and at one point he owned 16 cars, six of them Lamborghinis.