Herbert Kunstmann
5Patents
3h-index
11Co-inventors
50Inventor score
Filing activity: Oct 19, 1992 → May 1, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5718755A | Preparation and use of iron oxide black pigment granules | Chemistry; Metallurgy | 9 | Expired |
| US7235127B2 | Reduction- and oxidation-stable iron oxide black pigments having high colour strength for colouring plastics and building materials, their preparation and their use | Chemistry; Metallurgy | 7 | Expired |
| US7410536B2 | Oxidation-stable iron oxide pigments, process for preparing them and their use | Emerging Cross-Sectional Technologies | 6 | Active |
| US5269843A | Boron-containing iron oxide pigments and a process for their preparation | Chemistry; Metallurgy | 2 | Expired |
| US5665157A | Clean color shade, yellow-tinged red iron oxide pigments, and a process for their manufacture, and their use | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.