New Patent Assignments in Essex County, MA was 1.00000 Patents in November of 2022, according to the United States Federal Reserve. Historically, New Patent Assignments in Essex County, MA reached a record high of 81.00000 in July of 2019 and a record low of 1.00000 in July of 1993. Trading Economics provides the current actual value, an historical data chart and related indicators for New Patent Assignments in Essex County, MA - last updated from the United States Federal Reserve on May of 2024.