According to the statistics released by SIPO, the top ten rankings concerning patents and patent applications among domestic enterprises are listed below.
Top 10 Domestic Enterprises regarding the filing of invention patent applications in 2015 include: State Grid Corporation of China (6,111), China Petroleum & Chemical Corporation (4,372), ZTE Corporation (3,516), Guang Dong OPPO Mobile Telecommunications corp., Ltd. (3,338), Huawei Technologies Co., Ltd. (3,216), Xiaomi Co. Ltd. (3,183), Beijing Qihu Technology Co. Ltd. (2,777), BOE Technology Group Co., Ltd. (2,761), Gree Electric Appliances, Inc. of Zhuhai (1,981), Lenovo (Beijing) Limited (1,826).
Top 10 Domestic Enterprises in terms of the number of granted patents in 2015 include: China Petroleum & Chemical Corporation (2,844), ZTE Corporation (2,673), Huawei Technologies Co., Ltd. (2,413), State Grid Corporation of China (2,081), BOE Technology Group Co., Ltd. (1,115), Shenzhen China Star Optoelectronics Technology Co., Ltd. (728), PetroChina Co Ltd. (641), Zoomlion Heavy Industry Science & Technology Co. Ltd. (596), Tencent Technology Shenzhen Co., Ltd. (581), BYD Company Ltd. (509).