With the analysis among 180 patents, we discovered top 25 key players by total patent application. Merck Frosst Canada & Co., Yamanouchi Pharmaceutical Co., Ltd., Fisons Ltd. are dominant in this area. They take 47.22% of the total patent filing.
Merck Frosst Canada & Co.
Yamanouchi Pharmaceutical Co., Ltd.
Tokyo-to, Japan
Patent: 18
BERKSHIRE, United Kingdom
Patent: 18
Hounslow, United Kingdom
Patent: 12
Tokyo-to, Japan
Patent: 12
New York, United States
Patent: 8
Takeda Pharmaceutical Co., Ltd.
New Jersey, United States
Patent: 7
Delaware, United States
Patent: 6
Fujisawa Pharmaceutical Co., Ltd.
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