Charles is the Director of Public Knowledge’s Patent Reform Project, where he focuses on patent policy and promoting technological innovation.
Before joining PK, he was a technology policy research fellow with the University of Colorado, on a project funded by the National Science Foundation. He also was a former Silicon Valley startup software developer, and a patent attorney practicing in Southern California. As an attorney he prosecuted and litigated patents, often on behalf of startups and small companies in the information technology industry. He is a registered patent attorney with the United States Patent and Trademark Office, where he has drafted and prosecuted hundreds of patent applications.