PCBL Ltd have been granted the 2 patents by the Indian Patent Office: The first is the invention titled 'Process for trestment of carbon black and oxidized carbon black obtained thereof' patent number IN444448: This patent is in relation to the innovative process of PCBL Limited for modifications of specialty grade carbon blacks for inks and coating applications.

The second invesntion titled "Surface modified carbon black grades to improve performance of rubber compounds', patent number IN449985. This patent is in relation to the innovative carbon black composition developed by PCBL Limited to improve fuel efficiency and tyre life.