Inventor · Mayfield Heights, OH, US

Stephen P. Birman

2Patents
2h-index
2Co-inventors
27Inventor score

Filing activity: Jun 10, 1986 → Jun 9, 1988

Most-cited inventions

PatentTitleAreaCited byStatus
US4880479A Cold drawn free-machining resulfurized and rephosphorized steel bars having controlled mechanical properties and controlled machinability Chemistry; Metallurgy 5 Expired
US4741786A Cold drawn free-machining steel bar including bismuth Chemistry; Metallurgy 3 Expired

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