Claus-Ulrich Priester
22Patents
9h-index
36Co-inventors
67Inventor score
Filing activity: Jan 28, 1987 → Dec 12, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5359062A | Recovery of caprolactam from polycaprolactam | Chemistry; Metallurgy | 18 | Expired |
| US4767856A | Preparation of caprolactam from 6-aminocaproic acid, esters and amides | Chemistry; Metallurgy | 17 | Expired |
| US4730041A | Preparation of .epsilon.-caprolactams | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4731445A | Preparation of epsilon-caprolactam | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5371292A | Preparation of 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine | Chemistry; Metallurgy | 12 | Expired |
| US5536831A | Obtaining caprolactam by cleavage of molten polycaprolactam | Chemistry; Metallurgy | 11 | Expired |
| US5455346A | Obtaining caprolactam by cleavage of molten polycaprolactam | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5068398A | Preparation of 6-aminocaproic esters | Chemistry; Metallurgy | 11 | Expired |
| US4965362A | Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin | Chemistry; Metallurgy | 10 | Expired |
| US5360905A | Recovery of caprolactam from oligomers and/or polymers of caprolactam | Chemistry; Metallurgy | 9 | Expired |
| US4963672A | Preparation of caprolactam | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4766237A | Preparation of 6-aminocaproates | Chemistry; Metallurgy | 6 | Expired |
| US4767857A | Preparation of caprolactam | Chemistry; Metallurgy | 6 | Expired |
| US5637700A | Purification of caprolactam | Chemistry; Metallurgy | 6 | Expired |
| US5166443A | Preparation of 2,2-disubstituted pentane-1,5-diamines | Chemistry; Metallurgy | 5 | Expired |
| US5239120A | Preparation of 2-(3-aminopropyl)-cycloalkylamines | Chemistry; Metallurgy | 5 | Expired |
| US5350847A | Purification of caprolactam | Chemistry; Metallurgy | 4 | Expired |
| US4963673A | Preparation of caprolactam | Chemistry; Metallurgy | 4 | Expired |
| US5247120A | Preparation of aminopropionitriles | Chemistry; Metallurgy | 1 | Expired |
| US5434291A | Preparation of aminopropionitriles | Chemistry; Metallurgy | 1 | Expired |
| US5344983A | Selective preparation of linear pentane-1,5-diamines in increased yields | Chemistry; Metallurgy | 1 | Expired |
| US5194607A | Reactive dyes with a triphendioxazine chromophore | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.