Inventor · Appenzell, CH

Donat Frei

2Patents
1h-index
9Co-inventors
33Inventor score

Filing activity: Jul 31, 2013 → Jan 22, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US10717908B2 Abrasive particle with at most three surfaces and one corner Chemistry; Metallurgy 32 Active
US9914863B2 Abrasive particle with at most three surfaces and one corner Chemistry; Metallurgy 0 Active

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