Patents Represented by Attorney, Agent or Law Firm Joseph Kirk - Justia Patents Search

Patents Represented by Attorney, Agent or Law Firm Joseph Kirk

Ethanol solvate of (-)-cis-2-(2-chlorophenyl)-5, 7-dihydroxy-8 [4R-(3S-hydroxy-1-M ethyl) piperidinyl]-4H-1-benzopyran-4-one

Patent number: 6821990

Abstract: An ethanol solvate form of (−)-cis-2-(2-chlorophenyl)-5,7-dihydroxy-8[4R-(3S-hydroxy-1-methyl)piperidinyl]-4H-1-benzopyran-4-one hydrochloride (Form II), a method of making Form II and a composition comprising Form II.

Type: Grant

Filed: January 16, 2001

Date of Patent: November 23, 2004

Assignee: Aventis Pharma Deutschland GmbH

Inventor: Kurt M. Kesseler