P. Laxmikant Dhepe, Kelkar, A. Anant, Matsagar, B. Mansub, and Singh, S. Kumar, ?Acidic ionic liquids catalyzed depolymerization of lignin?, U.S. Patent PCT/IN2014/0003202014.

S. Kumar Singh, Banerjee, S., Vanka, K., and Dhepe, P. Laxmikant, ?Understanding interactions between lignin and ionic liquids with experimental and theoretical studies during catalytic depolymerisation?, Catalysis Today, vol. 309, pp. 98-108, 2018.