Rolf Ludwig
7Patents
2h-index
7Co-inventors
44Inventor score
Filing activity: Jul 3, 1975 → Mar 5, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4274345A | Machine for sewing together workpiece parts having edges of equal or unequal length by means of a bead seam | Textiles; Paper | 7 | Expired |
| US3980531A | Bath and process for the electrolytic separation of rare metal alloys | Chemistry; Metallurgy | 5 | Expired |
| US4364318A | Machine for sewing together workpiece parts having edges of equal or unequal length by means of a bead seam | Textiles; Paper | 2 | Expired |
| US4364317A | Machine for sewing together workpiece parts having edges of equal or unequal length by means of a bead seam | Textiles; Paper | 1 | Expired |
| US4203377A | Sewing of a bead seam with loose thread loops | Textiles; Paper | 0 | Expired |
| US11268048B2 | Coated granules, use thereof, and washing and cleaning agents containing same | Chemistry; Metallurgy | 0 | Active |
| US11674113B2 | Co-granules, detergents and cleaning agents and use thereof | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.