长沙交出“十四五”科创高分答卷：有效发明专利增长154%，获中国专利金奖6项，居中西部第一

Group 1 - The core focus of the news is on Changsha's efforts to build a global R&D center city and a technology innovation highland during the "14th Five-Year Plan" period, highlighting significant achievements in various sectors [1][2][4] - Changsha has seen a remarkable increase in its strategic technology capabilities, with over 100 major research outcomes from the "4+4" innovation projects and the establishment of 55 new national-level innovation platforms, bringing the total to 152 [2] - The city has added 1,796 R&D institutions, doubling the total to 3,823, thereby accelerating its integration into the global innovation network [3] Group 2 - Over the past five years, Changsha has achieved breakthroughs in over 400 key core technologies, including more than 60 globally leading and independently controllable technologies, driving industrial upgrades [4] - The technology contract transaction amount as a percentage of GDP has increased significantly from 2.79% to 8.97%, indicating a substantial enhancement in the efficiency of technology transfer [5][6] - The number of valid invention patents in the city has reached 85,400, with a growth of 154%, and the per capita valid invention patent ownership is 80.46, reflecting a continuous improvement in the quality of innovation [7] Group 3 - Talent attraction has become a key resource for innovation, with Changsha ranking 9th nationally and 1st in Central China for talent retention, being recognized as one of the most attractive cities for foreign talent for six consecutive years [8] - The city has established a robust innovation ecosystem with over 24 billion yuan in various innovation funds and has implemented local regulations to protect intellectual property rights [8] - Changsha's digital economy is thriving, with nearly 88,000 core digital economy enterprises and an annual growth rate exceeding 24%, positioning it as a hub for digital innovation [11] Group 4 - Changsha has made significant strides in digital infrastructure, with its smart city indicators ranking among the top ten nationwide, driven by initiatives such as the establishment of a data resource management platform and comprehensive e-government services [9][10]