With the analysis among 81 patents, we discovered top 22 key players by total patent application. Vertex Pharmaceuticals, Inc., AcelRx Pharmaceuticals, Inc., Cephalon, Inc. are dominant in this area. They take 41.98% of the total patent filing.
Massachusetts, United States
Patent: 16
California, United States
Patent: 10
Pennsylvania, United States
Patent: 8
California, United States
Patent: 6
Buenos Aires, Argentina
Patent: 6
California, United States
Patent: 5
Luxembourg, Luxembourg
Patent: 5
New Jersey, United States
Patent: 4
Nevada, United States
Patent: 4
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With the analysis among related 4 patents applied in the last 5 years. We discover 1 most active companies in this area.
California, United States
Patent: 1
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