Dr. Ghangrekar had filed Indian patents on

  1. Das, I., Ghangrekar, M.M. In situ microbial fuel cell based waste water treatment system. Provisional Patent Application No.: 201831031356 and dated August 21, 2018. Patent No. IN201831031356A published on 28-02-2020. Das Indrasis | Ghangrekar Makarand Madhao.
  2. Enhancing organic matter removal from malt based distillery wastewater by Aspergillus awamori pretreatment, for Chitosan recovery, and electricity recovery in microbial fuel cell. Indian Patent Application No.: 822/KOL/2014 dated August 4, 2014. Patent No. IN201400822I2. Published 2016-08-26. RAY Sreemoyee Ghosh | Ghangrekar Makarand Madhao.
  3. A system for simultaneous treatment of wastewater and wastegas using a microbial carbon capture cell reactor. Indian Patent Application No.: 0471/KOL/2015 dated April 28, 2015.
  4. Anode, Cathode and Separator in Microbial Fuel Cell (MFC) for Treatment of Wastewater and Electricity Generation. Provisional Patent filed in March 2014.
  5. Fabrication of Low Cost Microbial fuel cell using Earthen pot as a proton exchange material.  Patent application No. 1198/KOL/2009 date 24/09/2009. Patent No. IN200901198I2. Published 2013-06-28. Ghangrekar Makarand Madhao | Behera Manaswini | Jana Partha Sarathi.
  6. Earthen material based cathode separator assembly for bioelectrochemical system. Provisional Patent application No. 805/KOL/2013. Date 05/07/2013.
  7. Development of cost effective membrane cathode assembly for a single chambered microbial fuel cell. Indian Patent Application No.: 1302/KOL/2013 dated 14/09/2013. Inventors: Soumya Pandit, Shantimoyi Khilari, D. Das, M.M. Ghangrekar, D. Pradhan.
  8. Yellow laccase mediated delignification of Lignocellulosic biomass.  Provisional Indian Patent file No. 201631005954.