With the analysis among 144 patents, we discovered top 38 key players by total patent application. STC Plc, Hazeltine Corp., Western Electric Co., Inc. are dominant in this area. They take 30.56% of the total patent filing.
New York, United States
Patent: 15
Georgia, United States
Patent: 12
Wisconsin, United States
Patent: 6
California, United States
Patent: 5
Arizona, United States
Patent: 4
New York, United States
Patent: 4
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With the analysis among related 2 patents applied in the last 5 years. We discover 2 most active companies in this area.
Zhejiang Sheng, China
Patent: 1
With the analysis among related 2 patents in last 5 years, we discover 2 new entrants.
Zhejiang Sheng, China
Patent: 1
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