Inventor · Essen, DE

Helmut Freundlieb

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

Filing activity: Oct 15, 1991 → Oct 15, 1991

Most-cited inventions

PatentTitleAreaCited byStatus
US5418522A System for indicating and signaling the presence of snow and ice Physics 9 Expired

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