"The USPTO considered many factors before making its final decision to locate its first new satellite office in Detroit. The city fulfilled a number of critical criteria, including a high percentage of scientists and engineers in the workforce; access to major research institutions; a high volume of patenting activity; and a significant number of patent agents and attorneys in the area."
The perfect place for patents
Eric Markowitz reports the United States Patent and Trademark Office is opening it's first-ever satellite office. His lead source explains why Detroit emerged as the preferred location: