Norbert Mronga
55Patents
19h-index
57Co-inventors
87Inventor score
Filing activity: Mar 8, 1988 → Oct 18, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5624486A | Multiply coated metallic luster pigments | Chemistry; Metallurgy | 133 | Expired |
| US5364467A | Luster pigments based on multiply coated plateletlike metalic substrates | Chemistry; Metallurgy | 128 | Expired |
| US5607504A | Multiply coated metallic luster pigments | Chemistry; Metallurgy | 98 | Expired |
| US5763086A | Goniochromatic luster pigments with silicon-containing coating | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4978394A | Metal oxide coated aluminum pigments | Chemistry; Metallurgy | 83 | Expired |
| US5958125A | Goniochromatic luster pigments based on transparent, nonmetallic, platelet-shaped substrates | Chemistry; Metallurgy | 72 | Expired |
| US5662738A | Luster pigments based on multiply coated plateletlike metallic substrates | Chemistry; Metallurgy | 45 | Expired |
| US5738801A | Hydrophobic silica aerogels | Chemistry; Metallurgy | 31 | Expired |
| US5277711A | Mixtures useful as luster pigments | Chemistry; Metallurgy | 31 | Expired |
| US5374306A | Luster pigments based on metal oxide-coated aluminum platelets having a total carbon content of less than 0.1% by weight | Chemistry; Metallurgy | 30 | Expired |
| US5244649A | Production of hematite pigments in the form of platelets | Chemistry; Metallurgy | 28 | Expired |
| US5626661A | Luster pigments based on multiply coated plateletlike silicatic substrates | Chemistry; Metallurgy | 28 | Expired |
| US6533857B1 | Gloss pigments comprising an absorbent low-refractive coating | Chemistry; Metallurgy | 27 | Expired |
| US5733658A | Luster pigments based on reduced titania-coated silicate-based platelets | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6139614A | Goniochromatic luster pigments based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere | Chemistry; Metallurgy | 22 | Expired |
| US4948631A | Preparation of particularly bluish pearl luster pigments | Chemistry; Metallurgy | 22 | Expired |
| US7449239B2 | Coated metallic luster pigments for pigmenting high molecular weight materials | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5540770A | Luster pigments with nitrogen-containing metal layers | Chemistry; Metallurgy | 20 | Expired |
| US5026429A | Metal oxide coated platelet-like organic pigments | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5733364A | Goniochromatic luster pigments with aluminum coating | Chemistry; Metallurgy | 19 | Expired |
| US5505991A | Production of silicon oxide-coated solid particles | Chemistry; Metallurgy | 19 | Expired |
| US5624487A | Preparation of bluish luster pigments | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6620233B1 | Goniochromatic luster pigments which are based on titanium dioxide-coated siliceous platelets heated in a reductive atmosphere | Chemistry; Metallurgy | 18 | Expired |
| US5401306A | Luster pigments with a metal sulfide coating | Chemistry; Metallurgy | 15 | Expired |
| US4867795A | Plateletlike pigments based on iron oxide | Chemistry; Metallurgy | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.