Inventor · Ames, IA, US

Donald Flugrad

8Patents
5h-index
4Co-inventors
52Inventor score

Filing activity: Jan 8, 1993 → Aug 6, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US6937227B2 Hand-held pointing device Physics 38 Expired
US5339906A Positon feedback mechanism for an implement Human Necessities 24 Expired
US7118512B2 Self-actuating, traction-drive speed changer Emerging Cross-Sectional Technologies 7 Expired
US7778995B2 Geometric search engine Emerging Cross-Sectional Technologies 5 Active
US7548650B2 Geometric search engine Emerging Cross-Sectional Technologies 5 Expired
US7492374B2 Computer aided design file processing Physics 1 Active
US8534146B2 Geared, continuously variable speed transmission Emerging Cross-Sectional Technologies 1 Active
US7938033B2 Geared, continuously variable speed transmission Emerging Cross-Sectional Technologies 0 Active

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