Inventor · Glen Mills, PA, US

James E. Hagerman

2Patents
2h-index
7Co-inventors
41Inventor score

Filing activity: Feb 4, 1983 → Dec 23, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US4618810A Variable speed AC motor control system Electricity 36 Expired
US7355513B1 Ultra-reliable personnel position locating system Physics 11 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.