Inventor · San Francisco, CA, US

Phil Rha

7Patents
2h-index
5Co-inventors
44Inventor score

Filing activity: Jan 3, 1996 → May 1, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US5704774A Pump with twin cylindrical impellers Mechanical Engineering; Lighting; Heating 3 Expired
US9519525B2 File-level commenting Physics 3 Active
US11063888B2 Shared content item commenting Electricity 0 Active
US10341275B2 Shared content item commenting Electricity 0 Active
US6059550A Twin-cylinder impeller pump Mechanical Engineering; Lighting; Heating 0 Expired
US6382937B1 Tube pump Mechanical Engineering; Lighting; Heating 0 Expired
US10482152B2 File-level commenting Physics 0 Active

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