Robert E. Halvachs
11Patents
3h-index
13Co-inventors
57Inventor score
Filing activity: Apr 4, 1989 → Dec 12, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7285665B2 | Process for the preparation of quaternary N-alkyl morphinan alkaloid salts | Chemistry; Metallurgy | 11 | Expired |
| US8669366B2 | Process for the preparation of quaternary N-alkyl morphinan alkaloid salts | Emerging Cross-Sectional Technologies | 8 | Active |
| US6399829B1 | Synthesis and purification of (r*,r*)-2-[ (dimethylamino) methyl]-1-(3-methoxyphenyl) cyclohexanol hydrochloride | Chemistry; Metallurgy | 3 | Expired |
| US8148528B2 | Processes and compounds for the preparation of normorphinans | Chemistry; Metallurgy | 2 | Active |
| US4918251A | Preparation of 2-halofluorobenzene | Chemistry; Metallurgy | 1 | Expired |
| US8623888B2 | 3-oxy-hydromorphone derivatives | Human Necessities | 1 | Active |
| US9040726B2 | Process for the preparation of quaternary N-alkyl morphinan alkaloid salts | Emerging Cross-Sectional Technologies | 1 | Active |
| US9415044B2 | Process for the preparation of quaternary N-alkyl morphinan alkaloid salts | Emerging Cross-Sectional Technologies | 0 | Active |
| US7498434B2 | Two-phase method for the synthesis of selected pyrazolopyrimidines | Chemistry; Metallurgy | 0 | Expired |
| US7498439B2 | Synthesis of heteroaryl acetamides from reaction mixtures having reduced water content | Chemistry; Metallurgy | 0 | Expired |
| US8383649B2 | Crystalline forms of naltrexone methobromide | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.