With the analysis among 52 patents, we discovered top 20 key players by total patent application. Nippon Telegraph & Telephone Corp., Fujitsu Ltd., Ciena Corp. are dominant in this area. They take 42.31% of the total patent filing.
Tokyo-to, Japan
Patent: 10
New York, United States
Patent: 3
Pennsylvania, United States
Patent: 2
Oregon, United States
Patent: 2
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With the analysis among 3 patents, we discovered top 2 universities and scientific research institutions by total patent application.
Fujian Sheng, China
Patent: 1