Winners of the first Vietnam Invention Contest have been announced, with the top prize going to a rice combine harvester invented by Pham Hoang Thang from the Mekong Delta city of Can Tho.

Second prize was presented to the Ba Ria-Vung Tau Drainage and Urban Development Co. Ltd. for its wastewater treatment system, while third prize went to Nguyen Vinh Son from Ho Chi Minh City who invented the upside-down ball bearing for motorcycles.

The winning inventions were innovative, widely applicable, socially and economically effective.

Addressing the award ceremony on November 9 in Ho Chi Minh City, Minister of Science and Technology Nguyen Quan said although the contest was launched for the first time, it had a positive influence with many new and useful entries.

In 2014, the ministry will expand the competition to the whole country in an effort to make full use of scientific and technological inventions in national socio-economic development.

The contest is jointly organised by the Ministry of Science and Technology, the World Intellectual Property Organisation and the Vietnam Books of Record Organisation.

It received 146 entries from 100 individuals and teams from southern cities and provinces.-VNA