Now this is thinking outside the box. An online auction for patents.

The world can be a rough place for independent inventors. They can often find themselves in court, battling big corporations, spending piles of money on lawyers and leaving it up to judges and juries to determine the value of their hard-won patents.

That could be changing. Wrangling over patents is beginning to move out of the courtroom and into the marketplace. A flurry of new companies and investment groups has sprung up to buy, sell, broker, license and auction patents. And venture capital and private equity is starting to pour into the field.

The arrival of these new business-minded players, according to patent experts and economists, could lead to a robust marketplace for patents, where value is determined not so much by court judgments but by buyers and sellers, perhaps, someday, like eBay.