- AN ENERGY EFFICIENT PROCESS FOR THE SIMULTANEOUS RECOVERY OF PRECIOUS METALS, COPPER AND RARE EARTHS FROM WASTE PRINTED CIRCUIT BOARDS (Indian Patent, Published on 19th September 2022)
- CONCENTRATED RECOVERY OF PRECIOUS METALS FROM WASTE PRINTED CIRCUIT BOARDS (Indian Patent No. 355672; granted on 9th March 2020)
- ENERGY EFFICIENT RECOVERY OF HIGH PURITY COPPER FROM WASTE PRINTED CIRCUIT BOARDS (Indian Patent No. 345127; granted on 9th 2020)
- METHOD FOR CONCENTRATING RARE EARTH ELEMENTS PRESENT IN WASTE PRINTED CIRCUIT BOARDS (Indian Patent No. 363721; granted on 18th May 2020)
- METHOD FOR REDUCING HEAVY METAL EMISSIONS DURING THERMAL TREATMENT OF ELECTRONIC WASTE (Indian Patent No. 352458; granted on 14th April 2020)