Leonhard Feiler
13Patents
4h-index
25Co-inventors
60Inventor score
Filing activity: Nov 10, 1994 → Jan 17, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5650513A | Process for preparing perylene-3,4-dicarboxylic acid derivatives, the derivatives thus prepared and their use | Chemistry; Metallurgy | 29 | Expired |
| US7217803B2 | Benzimidazole-pyridone-based azo dyes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5900490A | Preparation of perylene-3, 4-Dicarboxylic acid anhydrides | Chemistry; Metallurgy | 7 | Expired |
| US8962140B2 | Functionalized core-shell nanoparticles | Emerging Cross-Sectional Technologies | 4 | Active |
| US6762224B2 | Compounds for mass colouration of high temperature polymers | Chemistry; Metallurgy | 3 | Expired |
| US6872839B1 | Benzofuran-2-one | Chemistry; Metallurgy | 2 | Expired |
| US7417154B2 | Heat-stable diketopyrrolopyrrole pigment mixtures | Chemistry; Metallurgy | 1 | Expired |
| US7786313B2 | Heat-stable diketopyrrolopyrrole pigment mixtures | Chemistry; Metallurgy | 1 | Active |
| US6093834A | Preparation of perylene-3,4-dicarboxylic acid anhydrides | Chemistry; Metallurgy | 1 | Expired |
| US11512048B2 | Heat sensitive recording material, and color developer | Performing Operations; Transporting | 1 | Active |
| US6355783B1 | Compounds for mass coloration of high temperature polymers | Chemistry; Metallurgy | 0 | Expired |
| US12122919B2 | Dichroic azo-azomethine dyes for liquid crystal compositions | Chemistry; Metallurgy | 0 | Active |
| US8287776B2 | Preparation of a photochromic ink | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.