Inventor · Schwaigern, DE

Helmut Karl

3Patents
3h-index
6Co-inventors
36Inventor score

Filing activity: Jan 22, 1993 → Jun 7, 1996

Most-cited inventions

PatentTitleAreaCited byStatus
US5454134A Windshield washing system with fluid pipe in wiper shaft Emerging Cross-Sectional Technologies 11 Expired
US5398370A Wiper system having a depression for accommodating a fluid hose Performing Operations; Transporting 10 Expired
US5820286A Fixing means for a windshield wiper system Emerging Cross-Sectional Technologies 5 Expired

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