With the analysis among 1,025 patents, we discovered top 208 key players by total patent application. Telefonaktiebolaget LM Ericsson, SK Telecom Co., Ltd., NEC Corp. are dominant in this area. They take 15.51% of the total patent filing.  
Telefonaktiebolaget LM Ericsson
Tokyo-to, Japan
Patent: 46
AT&T Wireless Services, Inc.
Washington, United States
Patent: 35
Samsung Electronics Co., Ltd.
Texas, United States
Patent: 26
California, United States
Patent: 25
Lucent Technologies, Inc.
New Jersey, United States
Patent: 25
Tokyo-to, Japan
Patent: 20
With the analysis among 5 patents, we discovered top 4 start-ups by total patent application. OWiN Inc., iSign International, Inc., Everspin Corp. are active in this area.  
iSign International, Inc.
Washington, United States
Patent: 1
Hong Kong SAR, China
Patent: 1
With the analysis among related 8 patents applied in the last 5 years. We discover 4 most active companies in this area. The fast-growing Guangdong Jianda Medical Technology Co., Ltd, Mastercard International, Inc., Tamura Corp. take 37.50% of patent filing during this period.  
Guangdong Jianda Medical Technology Co., Ltd
Guangdong Sheng, China
Patent: 1
Mastercard International, Inc.
New York, United States
Patent: 1
Hong Kong SAR, China
Patent: 1
With the analysis among related 8 patents in last 5 years, we discover 3 new entrants.  
Guangdong Jianda Medical Technology Co., Ltd
Guangdong Sheng, China
Patent: 1
Hong Kong SAR, China
Patent: 1
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