With the analysis among 132 patents, we discovered top 42 key players by total patent application. Lucent Technologies, Inc., Telogy Networks, Inc., Motorola, Inc. are dominant in this area. They take 27.27% of the total patent filing.
New Jersey, United States
Patent: 15
Illinois, United States
Patent: 10
Texas, United States
Patent: 9
Illinois, United States
Patent: 7
New York, United States
Patent: 6
Illinois, United States
Patent: 6
Massachusetts, United States
Patent: 5
California, United States
Patent: 5
Minnesota, United States
Patent: 4
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