Inventor · Vellmar, DE

Erich K. Fehr

2Patents
1h-index
13Co-inventors
45Inventor score

Filing activity: Mar 9, 1981 → Mar 31, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US4340744A Preparation of imidazoles Chemistry; Metallurgy 8 Expired
US7753970B2 Polyalkene amines with improved applicational properties Chemistry; Metallurgy 1 Active

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