Inventor · Hiroshima, JP

Ryuji Kumagai

18Patents
10h-index
40Co-inventors
68Inventor score

Filing activity: Jul 2, 2007 → May 15, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
USD573522S1 Rear door of motor vehicle General 61 Expired
USD688989S1 Bumper for motor vehicle General 37 Active
USD668593S1 Bumper for motor vehicle General 30 Active
USD713304S1 Bumper for motor vehicle General 26 Active
USD698290S1 Bumper for motor vehicle General 24 Active
USD842760S1 Motor vehicle General 18 Active
USD765546S1 Motor vehicle General 17 Active
USD573511S1 Motor vehicle General 15 Expired
USD819493S1 Motor vehicle General 12 Active
USD588506S1 Bumper of motor vehicle General 10 Expired
USD845835S1 Motor vehicle General 7 Active
USD756276S1 Motor vehicle front bumper General 7 Active
USD595192S1 Bumper of motor vehicle General 4 Expired
USD564109S1 Headlight for a motor vehicle General 3 Expired
USD701476S1 Bumper for motor vehicle General 3 Active
USD922285S1 Motor vehicle General 1 Active
USD883883S1 Motor vehicle General 1 Active
USD883881S1 Motor vehicle General 0 Active

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