Horst Behre
36Patents
3h-index
54Co-inventors
66Inventor score
Filing activity: Jan 11, 1978 → Jun 10, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4873026A | Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and 1-aminonaphthalene-7-sulphonic acid | Chemistry; Metallurgy | 38 | Expired |
| US4973758A | Process for the preparation of 1,5-dihydroxynaphthalene and 1,5-diaminonaphthalene | Chemistry; Metallurgy | 6 | Expired |
| US4325889A | Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid) | General | 4 | Expired |
| US4348336A | Process for the isolation of 1-naphthylamine-4,6- and 1-naphthylamine-4,7-disulphonic acid | Chemistry; Metallurgy | 3 | Expired |
| US4166826A | Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid) | Chemistry; Metallurgy | 3 | Expired |
| US4178308A | Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid) | Chemistry; Metallurgy | 2 | Expired |
| US5574188A | Process for the preparation of 4,6-diaminoresorcinol | Chemistry; Metallurgy | 2 | Expired |
| US4407762A | Process for the isolation of 1-naphthylamine-4,8-disulphonic acid | Chemistry; Metallurgy | 2 | Expired |
| US4450297A | Preparation of o-nitrobenzaldehyde | Chemistry; Metallurgy | 2 | Expired |
| US4538007A | Process for the simultaneous recovery of 4-hydroxy-diphenyl and 4,4'-dihydroxydiphenyl | Chemistry; Metallurgy | 2 | Expired |
| US4180521A | Process for the preparation of naphthalene-1,3,6-trisulphonic acid | Chemistry; Metallurgy | 1 | Expired |
| US6093852A | Process for preparing 4,6-diamino-resorcinol dihydrochloride | Chemistry; Metallurgy | 1 | Expired |
| US5629441A | 2-(arylimino-methyl)-3-dialkylaminoacrylonitriles, a process for their preparation and their use | Chemistry; Metallurgy | 1 | Expired |
| US4426333A | Process for the preparation of 1-benzoylamino-8-hydroxynaphthalene-4,6-disulphonic acid (benzoyl-K acid) | Chemistry; Metallurgy | 1 | Expired |
| US4427601A | Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amidol acid) | Chemistry; Metallurgy | 1 | Expired |
| US4163752A | Process for the preparation of aminonaphthalenesulphonic acids | General | 1 | Expired |
| US6133480A | Preparation of N-phenyl-1-naphthylamine | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4426334A | Process for isolating H acid and K acid | Chemistry; Metallurgy | 1 | Expired |
| US4369143A | Process for the preparation of naphthalene-1,3,5-trisulphonic acid | Chemistry; Metallurgy | 1 | Expired |
| US4540817A | Process for the preparation of 5-amino-2,4-dimethylacetanilide | Chemistry; Metallurgy | 1 | Expired |
| US6891060B2 | Preparation of 3-acyloxy-2-methylbenzoic acids | Chemistry; Metallurgy | 0 | Expired |
| US5248812A | Process for the isolation of 2-naphthylamine-1,5-disulphonic acid | Chemistry; Metallurgy | 0 | Expired |
| US4609503A | Process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid (k-acid) | Chemistry; Metallurgy | 0 | Expired |
| US4859372A | Process for the sulphonation of aromatic compounds with sulphur trioxide | Chemistry; Metallurgy | 0 | Expired |
| US6610893B2 | Method for producing 4-hydroxy-3-nitrobiphenyl | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.