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| Number | Title | Issue Date |
| 7241885 | Process for the isolation of crystalline imipenem The present invention relates to a cost effective and industrially advantageous process for the preparation of imipenem of high purity comprising the steps of treating an aqueous solution containing imipenem with an organic solvent, wherein the imipenem is not lyoph... | 07/10/2007 |
| 7129365 | Process for the preparation of acitretin The present invention relates to a cost effective and industrially useful process for the preparation of substantially pure acitretin. More specifically, the present invention relates to the preparation of acitretin of high purity and yield. ... | 10/31/2006 |
| 7115281 | Processes for the preparation of oral dosage formulations of modafinil The invention relates to processes for preparing, and pharmaceutical compositions of, modafinil dosage forms for oral administration. The dosage forms include a mixture of coarse and fine particles of modafinil. The process for preparing modafinil oral dosage forms ... | 10/03/2006 |
| 7084301 | Tamsulosin derivative The optically active compound, R (−)-5-[2-[[2-(2-ethoxyphenoxy)ethyl]amino]propyl]-2-hydroxybenzenesulfonamide in good optical purity, a metabolite of the α1-adrenergic blocking agent tamsulosin, and methods for the preparation thereof. Pharmaceutical ... | 08/01/2006 |
| 6900296 | Cost effective method for selective methylation of erythromycin A derivatives The invention relates to a cost effective and industrially advantageous process for the selective methylation of a hydroxy group at the 6 position of erythromycin A derivative which comprised methylating the erythromycin A derivative with a methylating agent in a mi... | 05/31/2005 |
| 6894188 | Tamsulosin derivative The optically active compound, R(−)-5-[2-[[2-(2-ethoxyphenoxy)ethyl]amino]propyl]-2-hydroxybenzenesulfonamide in good optical purity, a metabolite of the α1-adrenergic blocking agent tamsulosin, and methods for the preparation thereof. Pharmaceutical c... | 05/17/2005 |
| 6833452 | Process for the preparation of highly pure crystalline (R,S)—cefuroxime axetil A process for the preparation of highly pure crystalline form of cefuroxime-1-acetoxyethyl ester (cefuroxime axetil) from cefuroxime by reacting an amine salt of cefuroxime with an esterifying reagent. ... | 12/21/2004 |
| 6822119 | Process for the preparation of tolterodine The present invention relates to a cost effective and industrially advantageous process for the preparation of tolterodine and pharmaceutically acceptable salts thereof. ... | 11/23/2004 |
| 6803468 | Process for the synthesis of n-(5-methylnicontinoyl)-4 hydroxypiperidine, a key intermediate of rupatadine The present invention relates to an improved and industrially advantageous process for the preparation of N-(5-methylnicotinoyl)-4-hydroxypiperidine of Formula I, as shown in the accompanied drawings. This compound is a key intermediate for the synthesis of rupatadi... | 10/12/2004 |