Patent suit could sting eBay

eBay, one of the biggest success stories on the Web, is being threatened with a patent infringement lawsuit that could force it to modify its winning auction format. MercExchange founder Thomas Woolston, an inventor and patent attorney who has been granted four online auction-related patents since 1998 and has some 10 others pending, said he sued eBay in 2001 after negotiations broke down over the auction site’s offer to purchase his patents