[gamblor956]

We need know nothing about the person selling the stuff on ebay. It's irrelevant how the ebay merchant got the goods, what matters is how the manufacturer gave up the goods.

If it was theft--easy case. Stolen property is not covered by UCC. (It's the Uniform Code of Contracts, so there must be a chain of contracts connecting the property from the manufacturer to the innocent buyer for the UCC to apply.)

If it was theft by fraud--now we're talking. This could mean, for example, that the eBay merchant ordered the goods from the manufacturer but then never paid, or lied about who they were, or some other such misrepresentation or fraud or crime. In this case, there's a chain of contracts, so an innocent buyer from the eBay merchant would be protected by the UCC. (Note that if the eBay merchant knowingly does not pay, it could be both theft or theft by fraud depending on the jurisdiction and specific circumstances.)