Chemagis Ltd.
38Patents
21Active
38Granted
43Portfolio score
Filing activity: Sep 8, 1993 → Oct 7, 2008 · 21 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5414129A | Process for the purification of 2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol and its salts | Chemistry; Metallurgy | 18 | Expired |
| US5672755A | Process for the purification of (RR-SS)-2-dimethyl-aminomethyl-1-(3-methoxyphenyl)cyclohexanol and its salts | Chemistry; Metallurgy | 14 | Expired |
| US5874620A | Process for the purification of (RR-SS)-2-dimethylaminomethyl-1-(3-methoxyphenyl)cyclohexanol hydrochloride | Chemistry; Metallurgy | 12 | Expired |
| US7507821B2 | Process for preparing Imatinib | Chemistry; Metallurgy | 8 | Active |
| US6649796B2 | Process for the preparation of acetamide derivatives | Chemistry; Metallurgy | 7 | Expired |
| US7550591B2 | Imatinib production process | Chemistry; Metallurgy | 4 | Active |
| US7208485B2 | Crystalline forms of halobetasol propionate | Chemistry; Metallurgy | 4 | Expired |
| US6734195B2 | Pharmaceutical compositions containing donepezil hydrochloride | Human Necessities | 4 | Expired |
| US7612202B2 | Process for preparing temozolomide | Performing Operations; Transporting | 3 | Active |
| US7592459B2 | Use of purified donepezil maleate for preparing pharmaceutically pure amorphous donepezil hydrochloride | Human Necessities | 3 | Active |
| US7323568B2 | Process for preparing Imiquimod | Chemistry; Metallurgy | 3 | Expired |
| US6844440B2 | Process for the preparation of donepezil | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7544805B2 | Stable amorphous forms of montelukast sodium | Human Necessities | 2 | Expired |
| US7659398B2 | Imiquimod production process | Chemistry; Metallurgy | 2 | Active |
| US7528254B2 | Process for preparing montelukast and salts thereof | Chemistry; Metallurgy | 2 | Active |
| US7579461B2 | Processes for the preparation of rocuronium bromide and intermediates thereof | Chemistry; Metallurgy | 1 | Active |
| US7943771B2 | Imiquimod production process | Chemistry; Metallurgy | 1 | Active |
| US6100400A | Process for the preparation of esters of [2-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]-ethoxy]acetic acid | Chemistry; Metallurgy | 1 | Expired |
| US7572930B2 | Process for preparing 1-(mercaptomethyl)cyclopropaneacetic acid, a useful intermediate in the preparation of montelukast and salts thereof | Chemistry; Metallurgy | 1 | Active |
| US6329521A | Process for preparing substituted benzoyl cyanide amidinohydrazones | Chemistry; Metallurgy | 1 | Expired |
| US6747163B2 | Method for the isolation of 6&agr;, 9&agr;-difluoro-11&bgr;, 17&agr;-dihydroxy-16&agr;-methylpregna-3-oxo-1,4-diene-17&bgr;-carboxylic acid | Chemistry; Metallurgy | 1 | Expired |
| US8334388B2 | Palonosetron salts and processes for preparation and purification thereof | Chemistry; Metallurgy | 0 | Active |
| US7524960B2 | Highly pure cilostazol and an improved process for obtaining same | Chemistry; Metallurgy | 0 | Active |
| US7615632B2 | Crystalline forms of temozolomide | Human Necessities | 0 | Expired |
| US8293912B2 | Process for producing cisatracurium compounds and associated intermediates | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.