With the analysis among 45 patents, we discovered top 18 key players by total patent application. Airlux SA, Siemens AG, Citizen Watch Co., Ltd. are dominant in this area. They take 20.00% of the total patent filing.
Nordrhein-Westfalen, Germany
Patent: 2
Beijing Shi, China
Patent: 1
Oberösterreich, Austria
Patent: 1
California, United States
Patent: 1
California, United States
Patent: 1
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