Inventor · Brockville, ON, CA

Douglas Matthews

2Patents
1h-index
2Co-inventors
34Inventor score

Filing activity: Feb 17, 1981 → Dec 6, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US5803709A Axial flow fan Mechanical Engineering; Lighting; Heating 20 Expired
US4401336A Hollow core holder Performing Operations; Transporting 1 Expired

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