QUEENSBURY — Trademark applications made with the U.S. Patent and Trademark Office only days ago suggest that the Six Flags Great Escape amusement park in Queensbury may be in the process of changing its name — or perhaps its ownership.The filing is fueling speculation that Six Flags may be in t he process of rebranding or possibly selling some of its properties across the country. The company’s leadership has been telling investors it is planning to reduce the size of its portfolio. It has also faced attendance struggles. ...read more read less