With the analysis among 25 patents, we discovered top 16 key players by total patent application. Otsuka Pharmaceutical Co., Ltd., Grünenthal GmbH, Beijing Ha Sanlian Technology Co., Ltd. are dominant in this area. They take 40.00% of the total patent filing.
Nordrhein-Westfalen, Germany
Patent: 3
Hovedstaden, Denmark
Patent: 2
Massachusetts, United States
Patent: 2
Heilongjiang Sheng, China
Patent: 2
New York, United States
Patent: 1
Hounslow, United Kingdom
Patent: 1
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