Roche Erlotinib Patent suit brief

Roche is an exclusive licensee for Erlitinib hydrochloride in india and patent details are below:
Granted patent: IN196774
Grant Publication: 14/Sep/2007
Application: 537/DEL/1996
Applicant: Pfizer
Corresponding patent: US5747498 [Orange Book listed]
US expiry: 30/Mar/2015

Erlotinib was developed jointly by OSI pharma and Pfizer, later pfizer granted developmental and marketing rights to OSI pharma for royalty free. OSI started clinical development and clinical [...]