Du Page County, IL - New Patent Assignments in DuPage County, IL was 3.00000 Patents in February of 2023, according to the United States Federal Reserve. Historically, Du Page County, IL - New Patent Assignments in DuPage County, IL reached a record high of 306.00000 in October of 2015 and a record low of 1.00000 in June of 1980. Trading Economics provides the current actual value, an historical data chart and related indicators for Du Page County, IL - New Patent Assignments in DuPage County, IL - last updated from the United States Federal Reserve on June of 2024.