Inventor · Sharon, MA, US

Junghwan Chei

44Patents
14h-index
19Co-inventors
74Inventor score

Filing activity: Nov 9, 2011 → Jun 24, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
USD799767S1 Vacuum cleaner General 58 Active
USD827955S1 Hand vacuum component of a vacuum cleaner General 39 Active
USD814723S1 Vacuum cleaner General 35 Active
USD843671S1 Robotic vacuum cleaner General 29 Active
USD657990S1 Waffle iron General 23 Expired
USD939436S1 Auto-emptying docking station General 19 Active
USD947473S1 Robot vacuum General 18 Active
USD924509S1 Vacuum cleaner General 18 Active
USD765331S1 Floor cleaning device General 17 Active
USD887656S1 Vacuum cleaner General 17 Active
USD944475S1 Hand vacuum cleaner General 17 Active
USD904708S1 Mop head General 15 Active
USD846821S1 Surface cleaning head component of a vacuum cleaner General 15 Active
USD796756S1 Steam apparatus General 15 Active
USD927109S1 Hand vacuum component General 13 Active
USD952275S1 Vacuum cleaner General 12 Active
USD874757S1 Handheld vacuum component General 12 Active
USD869797S1 Robotic vacuum cleaner General 12 Active
USD855269S1 Surface cleaning head component of a vacuum cleaner General 11 Active
USD833098S1 Mop head General 11 Active
USD764732S1 Floor cleaning device General 8 Active
USD837470S1 Surface cleaning head with leading roller General 8 Active
USD833097S1 Mop head General 7 Active
USD836865S1 Adjustable wand for a vacuum cleaner General 7 Active
USD990804S1 Mop head General 6 Active

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