Inventor · Krefeld, DE

Siegfried Zingel

2Patents
1h-index
10Co-inventors
41Inventor score

Filing activity: Oct 22, 1982 → Jun 18, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US5899566A Reactor for corrosive reaction mixtures Performing Operations; Transporting 2 Expired
US4430181A Process for the preparation of benzoyl chloride Chemistry; Metallurgy 1 Expired

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