Hazel Holden
14Patents
3h-index
10Co-inventors
57Inventor score
Filing activity: Jan 20, 1999 → Oct 16, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6432936B1 | Crystalline 1&agr;-hydroxyvitamin D2 and method of purification thereof | Chemistry; Metallurgy | 37 | Expired |
| US6835723B2 | 2-methylene-19-nor-20(S)-1&agr;-hydroxy-bis-homo-pregnacalciferol in crystalline form | Chemistry; Metallurgy | 11 | Expired |
| US6462031B2 | Crystalline 1&agr;-hydroxyvitamin D2 and method of purification thereof | Chemistry; Metallurgy | 3 | Expired |
| US8664206B2 | Diastereomers of 2-methylene-19-nor-22-methyl-1α,25-dihydroxyvitamin D3 | Emerging Cross-Sectional Technologies | 3 | Active |
| US6362350B1 | Crystalline 1&agr;, 24(S)-dihydroxyvitamin D2 and method of purification thereof | Chemistry; Metallurgy | 2 | Expired |
| US8519169B2 | Crystallization a 1alpha-hydroxy-20-methyl-2-methylene-19,24,25,26,27-pentanorvitamin D3 | Chemistry; Metallurgy | 1 | Active |
| US8404874B2 | (20R,25S)-2-Methylene-19,26-Dinor-1α,25-Dihydroxyvitamin D3 in crystalline form | Chemistry; Metallurgy | 1 | Active |
| US8884039B2 | Crystallization of (20R) and (20S) analogs of 2-methylene-19-nor-24-dimethyl-1α,25-dihydroxyvitamin D3 | Chemistry; Metallurgy | 1 | Active |
| US9212137B2 | Crystallization of (20R,22R)-2-methylene-19-nor-22-methyl-1α,25-dihydroxyvitamin D3 and related precursors | Chemistry; Metallurgy | 1 | Active |
| US8940916B2 | Crystallization of (20R)-2-methylene-19-nor-24-difluoro-1α,25-dihydroxyvitamin D3 | Chemistry; Metallurgy | 1 | Active |
| US8420839B1 | Crystallization of 1α-hydroxy-2-methylene-18,19-dinor-homopregnacalciferol | Chemistry; Metallurgy | 1 | Active |
| US11697635B2 | Procedure for crystallization of (22E)-(24R)-2-methylene-22-dehydro-1α,24-25-trihydroxy-19-nor-vitamin D3 | Chemistry; Metallurgy | 0 | Active |
| US10494337B2 | (20S)-1-α,25-dihydroxy-24,24-difluoro-19-nor-vitamin D3 analogs and their pharmaceutical uses | Chemistry; Metallurgy | 0 | Active |
| US9040728B2 | Crystallization of (20R) 19-nor-24-difluoro-1α,25-dihydroxyvitamin D3 | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.