On 17 July 2005, Medical Technologies filed a passing off action against Neon before the City Civil Court, Ahmedabad after Neon started using the mark ROFOL in 2004, which as per Medical Technologies was similar to Medical Technologies' mark PROFOL used since 1998. In its primary defence, Neon argued that it is the prior adopter (although admitting that it was the subsequent user) of the mark ROFOL since it applied for registration of the same in 1992 (when Medical Technologies was not even an entity in the market) which subsequently proceeded to registration in 2001. The City Civil Court was pleased to restrain Neon from using the mark ROFOL on the basis of Medical Technologies' prior common law rights in the mark PROFOL. Neon, thereafter, preferred an appeal before the Gujarat High Court which was rejected. The Supreme Court of India (Supreme Court), giving credence to the 'first in the market' test, has passed a significant decision in the case of Neon Laboratories Ltd v Medical Technologies Ltd & Ors (Civil Appeal No 1018 of 2006) affirming the City Civil Court's and Gujarat High Court's interim order restraining Neon Laboratories Ltd (Neon) from using the mark ROFOL (which was applied prior to the use of Medical Technologies Ltd's mark PROFOL) on the basis of its similarity to Medical Technologies Ltd's (Medical Technologies) mark PROFOL. In effect, the Supreme Court held that a prior application for registration of a mark is of no assistance if the use of the said mark is commenced after twelve years that too after the rival's use of their mark (in this case, Medical Technologies).

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