Inventor · Obernburg, DE

Willi Birkenfeld

1Patents
1h-index
1Co-inventors
22Inventor score

Filing activity: May 23, 1988 → May 23, 1988

Most-cited inventions

PatentTitleAreaCited byStatus
US4943481A Polyether imide fibers Emerging Cross-Sectional Technologies 9 Expired

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