New Patent Assignments in Marshall County, IA was 1.00000 Patents in June of 2022, according to the United States Federal Reserve. Historically, New Patent Assignments in Marshall County, IA reached a record high of 4.00000 in March of 2010 and a record low of 1.00000 in October of 1980. Trading Economics provides the current actual value, an historical data chart and related indicators for New Patent Assignments in Marshall County, IA - last updated from the United States Federal Reserve on May of 2024.