New Patent Assignments in Hampden County, MA was 2.00000 Patents in February of 2023, according to the United States Federal Reserve. Historically, New Patent Assignments in Hampden County, MA reached a record high of 74.00000 in September of 2015 and a record low of 1.00000 in January of 1981. Trading Economics provides the current actual value, an historical data chart and related indicators for New Patent Assignments in Hampden County, MA - last updated from the United States Federal Reserve on May of 2024.