Who knew that someone owned the Dewey Decimal System?

NYT: "The Dewey Decimal System is a product, a trademark, a brand name," said Joseph R. Dreitler, a lawyer for the Online Computer Library Center, a nonprofit library cooperative that filed the suit last week in Federal District Court in Ohio. "The idea here isn't to put the Library Hotel out of business. The idea is to protect Dewey and the Dewey Decimal System trademark."