New Patent Assignments in Johnson County, IA was 1.00000 Patents in December of 2022, according to the United States Federal Reserve. Historically, New Patent Assignments in Johnson County, IA reached a record high of 38.00000 in December of 2020 and a record low of 1.00000 in July of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for New Patent Assignments in Johnson County, IA - last updated from the United States Federal Reserve on May of 2024.