I didn't claim that the accountants made the right decision.
Also, the market has changed relative to fifteen years ago, clearly. There are lots of companies working on baldness now. I can't tell you why it's changed.
Whatever company currently owns the patent to RU 58851 might not even realize that it owns the patent. There might be nobody at the company bringing it up and saying "let's commercialize this". It's nobody's baby. Anybody who developed it and worked on it in the 1990s has long moved on.
Plus, there are better things to bring to market. I see RU as a bandaid. It will never work as well as constant DHT inhib provided by finasteride. You are trying to perfectly dissolve, apply, and get the RU to attach to the receptors around the follicle and competitively inhibit DHT/T, you're fighting a constant stream of DHT replenished by blood so it's hard to compete. You must applying perfectly every day or 2x day to really get max effect. Even CB is probably better than RU both at competing for the androgen receptor and reduced side effects, its just too expensive and hard to get for most people.
Don't get me wrong, if RU gives me good results (hasn't happened yet) I will happily use it for the coming years, but I'm really waiting for oral solutions like CRTH2 antagonists like seti for maintenence combined with like 1-2 topicals and treatments like histogen, minoxidil, and maybe CB . Hopefully someday soon we can stop using Anti androgens, but it will probably be a while.
Meanwhile, a majority of people can probably use oral finasteride/dutasteride with no sides and get better results than all of the above so the market isn't clamoring for better treatments.