For people who are wondering if there’s a central page or point of contact where you can see who are the trademark owner of a specific keyword you’re trying to bid on, you’re out of luck.
I got this reply quoting that you will have to ask the adwords support team for that piece of information to find out who the trademark owner is and how you can contact them.
I understand that you want to know if there is a faster way for you to get the contact details of the trademark owners, than contacting Adwords support for it. We will only be able to supply you with the contact details of the trademark owner when you ask for it and there is no other way to get these details. I apologise for any inconvenience caused because of this.
Not sure if this is universally applicable but if you know more about this, please leave a comment.