Trademarks aren't anything a holder would want to license out, though. First off, they're basically a brand's identity, and give the holders the legal defense

Trademarks aren't anything a holder would want to license out, though. First off, they're basically a brand's identity, and give the holders the legal defense to keep that brand name as protected. Secondly, they're very specific. Multiple companies can have the same trademark for different product categories. For example(like I have posted here before), Starcraft is a computer game developed by Blizzard Entertainment. It's also a pretty big recreational vehicle manufacturer. Both co-exist, because Blizzard does not make RV's, and Starcraft does not make video games. There isn't any regulation in place because Trademarks are intended to reduce consumer confusion for products. A trademark owner is under absolutely no obligation to license out the trademark to anyone, and if it is widely licensed out, the holder can actually lose the trademark if it becomes a common name for the product.