Rudiger Erckel
20Patents
7h-index
18Co-inventors
62Inventor score
Filing activity: Sep 12, 1975 → Jun 26, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4556432A | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Chemistry; Metallurgy | 17 | Expired |
| US4330427A | Mixtures of optical brighteners | Textiles; Paper | 16 | Expired |
| US4169810A | Mixtures of optical brighteners | Textiles; Paper | 15 | Expired |
| US4142044A | 4-Benzoxazolyl-4'-oxadiazolyl stilbene optical brighteners | Chemistry; Metallurgy | 11 | Expired |
| US4336155A | Mixtures of optical brighteners | Textiles; Paper | 11 | Expired |
| US4282355A | Process for the manufacture of bis-benzoxazolyl-stilbene compounds | Chemistry; Metallurgy | 10 | Expired |
| US4766207A | Process for the preparation of water-soluble polysaccharides, the saccharides thus obtainable, and their use | Human Necessities | 10 | Expired |
| US4578469A | Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs | Chemistry; Metallurgy | 6 | Expired |
| US4129412A | Brightener mixtures and their use | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4323675A | Novel stilbene compounds: process for their manufacture and their use as optical brighteners | Chemistry; Metallurgy | 5 | Expired |
| US4363744A | Mixtures of optical brighteners and their use for the optical brightening | Textiles; Paper | 5 | Expired |
| US4039531A | 4-Stilbenyl-1,2,3-triazoles, process for preparing them and their use as optical brighteners | Chemistry; Metallurgy | 4 | Expired |
| US4220760A | Diamino-1,3,5-triazinylstilbene compounds and process for preparing same | Chemistry; Metallurgy | 4 | Expired |
| US4589924A | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Chemistry; Metallurgy | 3 | Expired |
| US4197401A | Stilbenes, process for the manufacture thereof and the use thereof as optical brighteners | Chemistry; Metallurgy | 3 | Expired |
| US4332943A | Process for the preparation of pyridine | Chemistry; Metallurgy | 2 | Expired |
| US4310665A | Novel stilbene compounds and process for the manufacture thereof | Chemistry; Metallurgy | 1 | Expired |
| US4219651A | Benzimidazo-[1,2-a]-quinolines | Chemistry; Metallurgy | 1 | Expired |
| US4231741A | Mixtures of optical brighteners | Textiles; Paper | 1 | Expired |
| US4556431A | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.