With the analysis among 488 patents, we discovered top 323 key players by total patent application. Hengshui Yutiexin Environmental Protection Engineering Co., Ltd., China Railway Economic Planning and Research Institute Co., Ltd., Tibet Zhongchi Group Co., Ltd. are dominant in this area. They take 8.40% of the total patent filing.
Hengshui Yutiexin Environmental Protection Engineering Co., Ltd.
Hebei Sheng, China
Patent: 15
China Railway Economic Planning and Research Institute Co., Ltd.
Beijing Shi, China
Patent: 14
Tibet Zhongchi Group Co., Ltd.
Xizang Zizhiqu, China
Patent: 12
China Railway Design Group Co., Ltd.
Tianjin Shi, China
Patent: 11
China Academy of Railway Sciences Group Co. Ltd.
Beijing Shi, China
Patent: 10
Hefei Zhongchi Sound Barrier Technology Co., Ltd.
Anhui Sheng, China
Patent: 8
State Grid Corp. of China
Beijing Shi, China
Patent: 7
Matsushita Electric Works Co. Ltd.
Jiangsu Xinguang Environment Protection Engineering Co. Ltd.
Jiangsu Sheng, China
Patent: 7
Shanxi Junhao Industrial Co., Ltd.
Shanxi Sheng, China
Patent: 7
With the analysis among 1 patents, we discovered top 1 start-ups by total patent application.
With the analysis among related 348 patents applied in the last 5 years. We discover 228 most active companies in this area. The fast-growing Hengshui Yutiexin Environmental Protection Engineering Co., Ltd., Tibet Zhongchi Group Co., Ltd., China Railway Design Group Co., Ltd. take 10.06% of patent filing during this period.
Hengshui Yutiexin Environmental Protection Engineering Co., Ltd.
Hebei Sheng, China
Patent: 14
Tibet Zhongchi Group Co., Ltd.
Xizang Zizhiqu, China
Patent: 11
China Railway Design Group Co., Ltd.
Tianjin Shi, China
Patent: 10
China Railway Economic Planning and Research Institute Co., Ltd.
Beijing Shi, China
Patent: 9
Hefei Zhongchi Sound Barrier Technology Co., Ltd.
Anhui Sheng, China
Patent: 8
Shanxi Junhao Industrial Co., Ltd.
Shanxi Sheng, China
Patent: 6
China Academy of Railway Sciences
Beijing Shi, China
Patent: 6
Beijing Tianqing Tongchuang Environmental Protection Technology Co., Ltd.
Beijing Shi, China
Patent: 5
Tiangong Lide Technology Development Co., Ltd.
Hebei Sheng, China
Patent: 5
China Academy of Railway Sciences Group Co. Ltd.
Beijing Shi, China
Patent: 5
With the analysis among related 348 patents in last 5 years, we discover 213 new entrants. Hefei Zhongchi Sound Barrier Technology Co., Ltd., Beijing Tianqing Tongchuang Environmental Protection Technology Co., Ltd., Tiangong Lide Technology Development Co., Ltd. are the most active new entrants in this area.
Hefei Zhongchi Sound Barrier Technology Co., Ltd.
Anhui Sheng, China
Patent: 8
Beijing Tianqing Tongchuang Environmental Protection Technology Co., Ltd.
Beijing Shi, China
Patent: 5
Tiangong Lide Technology Development Co., Ltd.
Hebei Sheng, China
Patent: 5
Hebei Xingchen Engineering Technology Co., Ltd.
Hebei Sheng, China
Patent: 4
Shengjian Technology Group Co., Ltd.
Jiangsu Sheng, China
Patent: 4
Sichuan Kunyu Environmental Protection Technology Co., Ltd.
Sichuan Sheng, China
Patent: 4
Massachusetts, United States
Patent: 3
Zhejiang Kaihong Environmental Technology Co., Ltd.
Zhejiang Sheng, China
Patent: 3
Chengdu Wei Teng Environmental Protection Technology Co., Ltd.
Sichuan Sheng, China
Patent: 3
Changzhou Taida Acoustic Technology Co., Ltd.
Jiangsu Sheng, China
Patent: 3
With the analysis among 40 patents, we discovered top 17 universities and scientific research institutions by total patent application. China Academy of Railway Sciences, Tsinghua University, Southeast University are dominant in this area. They take 75.00% of the total patent filing.
China Academy of Railway Sciences
Beijing Shi, China
Patent: 12
Beijing Shi, China
Patent: 2
Jiangsu Sheng, China
Patent: 2
Rutgers State University of New Jersey
New Mexico, United States
Patent: 1
Shanghai Shi, China
Patent: 1
Harbin Engineering University
Heilongjiang Sheng, China
Patent: 1
Hubei Sheng, China
Patent: 1
Hefei Institutes of Physical Science
Anhui Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
University of Science & Technology Beijing
Beijing Shi, China
Patent: 1