Roland Heckendorn
13Patents
5h-index
23Co-inventors
66Inventor score
Filing activity: Dec 20, 1973 → Nov 27, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6656957B1 | Pyridine derivatives | Chemistry; Metallurgy | 21 | Expired |
| US5051413A | Unsaturated amino acids | Chemistry; Metallurgy | 11 | Expired |
| US4209515A | Triazole derivatives | Chemistry; Metallurgy | 8 | Expired |
| US4045570A | Heterocyclic S-imino-S-oxides | Chemistry; Metallurgy | 7 | Expired |
| US4510141A | Tricyclic polyazaheterocycles for treating depression or anxiety | Chemistry; Metallurgy | 5 | Expired |
| US4027029A | Diazepine derivatives | Human Necessities | 4 | Expired |
| US3988467A | Aminoacyl compounds | Chemistry; Metallurgy | 3 | Expired |
| US5175344A | Unsaturated amino acids | Chemistry; Metallurgy | 2 | Expired |
| US5294734A | 4-substituted 2-aminoalk-3-enoic acids | Chemistry; Metallurgy | 2 | Expired |
| US4209516A | Triazole derivatives | Chemistry; Metallurgy | 1 | Expired |
| US3943145A | 6-Phenyl-4H-v-triazolo[1,5-a][1,4]benzodiazepines | Chemistry; Metallurgy | 0 | Expired |
| US4111950A | Triazolyl benzophenones | Chemistry; Metallurgy | 0 | Expired |
| US5488140A | 4-substituted 2-aminoalk-3-enoic | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.