Inventor · Seongnam-si, KR

Changho SONG

3Patents
2h-index
5Co-inventors
27Inventor score

Filing activity: May 23, 2018 → Jan 23, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
USD909583S1 Breathing monitoring device General 7 Active
USD852959S1 Mouthpiece for spirometer General 5 Active
USD853567S1 Spirometer General 0 Active

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