In the case of Alkem Laboratories Limited v. Prevego Healthcare and Research Private Limited, [1] the Delhi High Court, delivered a significant judgment on January 17, 2026, revisiting the scope of trade mark protection over common alphabetic expressions in the pharmaceutical industry.   The Plaintiff, Alkem Laboratories Limited , a pharmaceutical manufacturer, claimed use of the marks and in respect of multivitamin and nutraceutical preparations since the year 1998 and 2008