Inventor · Natick, MA, US

Daniel D. Frey

1Patents
1h-index
11Co-inventors
29Inventor score

Filing activity: Jun 10, 2011 → Jun 10, 2011

Most-cited inventions

PatentTitleAreaCited byStatus
US8844959B2 Wheelchair with lever drivetrain Human Necessities 5 Active

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