Tata Chemicals wins patent revocation battle against HUL’s water purifier patent before IPAB
In a recent order, dated 12 June, 2012 (available over here), the Intellectual Property Appellate Board (IPAB), acting on a petition filed by Tata Chemicals, has revoked Indian Patent No. 195937 granted to Hindustan Unilever Ltd. (HUL) on the 26th of August, 2005 for the invention of a ‘filter cartridge’ that is used in HUL’s Pureit brand of water-filtration devices. While Tata Chemicals was represented Senior Advocate P.S. Raman who was briefed by Essenese Obhan, Managing Partner of the promising […]