Inventor · Leola, PA, US

Ralph M. Arment

1Patents
1h-index
Co-inventors
19Inventor score

Filing activity: Jul 28, 1978 → Jul 28, 1978

Most-cited inventions

PatentTitleAreaCited byStatus
US4143988A Manhole riser Fixed Constructions 4 Expired

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