(12) PATENT APPLICATION PUBLICATION (21) Application No. : 1341/MUMNP/2006 (19) INDIA (22) Date of filing of Application :13/11/2006 (43) Publication Date : 08/06/2007        Journal No. - 23/2007   (54) Title of the invention : CRYSTALLINE FORMS OF DULOXETINE FREE BASE   (51) International classification :C07D333/20 (31) Priority Document No :0410470.9 (32) Priority Date :11/05/2004 (33) Name of priority country :U.K. (86) International Application No         Filing Date :PCT/GB2005/001825 :11/05/2005 (87) International Publication No :WO2005/108386A1 (61) Patent of Addition to Application Number         Filing Date :NA :NA (62) Divisional to Application Number         Filing Date :NA :NA   (71)Name of Applicant :    1)CIPLA LIMITED       Address of Applicant :289 Bellasis Road, Mumbai Central, Mumbai-400 008, Maharashtra India (72)Name of Inventor :    1)KANKAN, Rajendra, Narayanrao (India)    2)RAO, Dharmaraj, Ramachandra (India)    3)SRINIVAS, Pathi, L (India)    4)RAVIKUMAR, Puppala (India) (57) Abstract : The present invention is concerned with duloxetine free base in crystalline form, and also novel polymorphic forms thereof.   Number of Pages = 31