Veterinarian

John Abraham, a veterinary doctor-cum-inventor based in Kerala, won the patent for inventing biodiesel from ''rendered chicken oil'' on July 7. Abraham said he waited around seven and a half years for the patent, while his mentor Professor Ramesh Saravana Kumar died waiting for the moment. Although biodiesel produces a mileage of around 38 km per litre, it reduces the ''pollution level by half''.