National Engineering Technology Research Center (1) Serial number Name of the base Approval department Affiliated unit Person in charge 1 National Engineering Research Center for Green Coating

National Engineering Technology Research Center (1) Serial number Name of the base Approval department Affiliated unit Person in charge 1 National Engineering Technology Research Center for Green

Year Patent for invention Utility model Design patent Total 2015 17 87 1 105 2016 40 179 21 240 2017 31 152 50 233 2018 28 222 26 276 2019 25 307 65 397 2020 55 385 42 482 2021 58 437 88 583 2022 73

The School of International Education and the Center of International Exchanges (Office of Hong Kong, Macao, and Taiwan Affairs) at Lanzhou Jiaotong University is the functional department and agency