Wednesday, November 21, 2007

Abacavir Hemisulfate - Indian pre grant opposition documents

Glaxo filed a patent application [872/CAL/98] for Abacavir Hemisulfate Salt [corresponding to Orange Book listed US6294540] with the Kolkata Office. This application was opposed by the Indian Network for People living with HIV/ AIDS [INP+].

Post the filing of Opposition, Glaxo has withdrawn the mentioned application. The Kolkata Patent Office vide a letter dated 01/Oct/2007 has confirmed that the application has been withdrawn by Glaxo.

Opposition brief from INP+;
Kolkata Patent Office letter declaring withdrawal of application by Glaxo.

Glaxo's earlier withdrawals from Indian Patent office, here [Combivir and Trizivir].

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