Bombay HC dismisses plea to restrict SIIâs Covishield trademark use Bombay High Court Mumbai: A division bench of Justices Nitin Jamdar and Chandrakant Bhadang of the Bombay High Court dismissed a plea from a Nanded-based pharmaceutical firm that sought injunction against the Serum Institute of India (SII) from using the name âCovishieldâ as a trademark. The bench observed that asking SII to not use Covishield as a trademark would cause confusion in the vaccine administration drive undertaken by the state. The firm, Cutis Biotech, that sells hand sanitisers under the brand name Covishield, claimed to have applied for registration of the trademark for its products.