Inventor · Kreuztal, DE

Helmut Hulsmann

1Patents
1h-index
5Co-inventors
25Inventor score

Filing activity: Jun 6, 1997 → Jun 6, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US5904786A Method of applying phosphate coatings to metal surfaces Chemistry; Metallurgy 10 Expired

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