With the analysis among 225 patents, we discovered top 34 key players by total patent application. Telefonaktiebolaget LM Ericsson, Matsushita Electronics Corp., NEC Corp. are dominant in this area. They take 52.89% of the total patent filing.
Telefonaktiebolaget LM Ericsson
Osaka-fu, Japan
Patent: 31
Tokyo-to, Japan
Patent: 27
Texas, United States
Patent: 17
Tokyo-to, Japan
Patent: 16
New Jersey, United States
Patent: 4
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