New Patent Assignments in Calvert County, MD was 1.00000 Patents in May of 2020, according to the United States Federal Reserve. Historically, New Patent Assignments in Calvert County, MD reached a record high of 45.00000 in December of 2014 and a record low of 1.00000 in September of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for New Patent Assignments in Calvert County, MD - last updated from the United States Federal Reserve on May of 2024.