Michel Costantini
38Patents
9h-index
24Co-inventors
75Inventor score
Filing activity: Sep 27, 1973 → Apr 16, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5399336A | Stannozeosilite/zirconozeosilite zeolites and catalytic hydroxylation of phenolics therewith | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5756837A | Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5414153A | Hydroxylation of phenolic compounds | Chemistry; Metallurgy | 15 | Expired |
| US5331103A | Process for monohydroxylation of phenolic compounds | Chemistry; Metallurgy | 15 | Expired |
| US4208339A | Process for the preparation of para-benzoquinone | Chemistry; Metallurgy | 12 | Expired |
| US5254746A | Hydroxylation of phenols/phenol ethers | Chemistry; Metallurgy | 12 | Expired |
| US5585526A | Preparation of P-fuchsones and synthesis of P-Dihydroxylated aromatic compounds therefrom | Chemistry; Metallurgy | 11 | Expired |
| US4026947A | Process for the oxidation of .beta.-isophorone | Performing Operations; Transporting | 10 | Expired |
| US3943179A | Hydroxylation of aromatic compounds | Chemistry; Metallurgy | 9 | Expired |
| US4092361A | Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione | Chemistry; Metallurgy | 9 | Expired |
| US6040484A | Phenol compound hydroxylation method | Chemistry; Metallurgy | 7 | Expired |
| US6787669B1 | Method for separating and purifying adipic acid | Chemistry; Metallurgy | 7 | Expired |
| US4918238A | Catalytic oxidation of alkanes into alcohol/ketone mixtures | Chemistry; Metallurgy | 7 | Expired |
| US4208536A | Hydroxylation of aromatic compounds | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4297287A | Production of epoxides from lower alkane-1,2-diols | Chemistry; Metallurgy | 5 | Expired |
| US4877903A | Cyclohexanol/cyclohexanone mixtures produced from cyclohexane | Chemistry; Metallurgy | 5 | Expired |
| US5354919A | Oxidation of aromatic compounds substituted by oxidizable alkyl moieties | Chemistry; Metallurgy | 5 | Expired |
| US5003109A | Destruction of acetone peroxides | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5003114A | Hydroxylation of phenols/phenol ethers | Chemistry; Metallurgy | 4 | Expired |
| US5434317A | Hydroxylation of phenolic compounds | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6762319B1 | Hydrocarbon, alcohol and/or ketone oxidation method | Chemistry; Metallurgy | 3 | Expired |
| US6147256A | Co/Cr catalyzyed oxidation of cyclohexane | Chemistry; Metallurgy | 3 | Expired |
| US5245086A | Hydroxylation of phenols/phenol ethers | Chemistry; Metallurgy | 3 | Expired |
| US4093636A | Epoxidation of olefinic compounds | Performing Operations; Transporting | 3 | Expired |
| US5097078A | Catalytic hydroxylation of phenols/phenol ethers | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.