With the analysis among 49 patents, we discovered top 18 key players by total patent application. Sanofi SA, Akzona Inc., Smith Kline & French Laboratories Ltd. are dominant in this area. They take 44.90% of the total patent filing.
North Carolina, United States
Patent: 7
Noord-Holland, Netherlands
Patent: 3
Pennsylvania, United States
Patent: 2
Illinois, United States
Patent: 2
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