With the analysis among 61 patents, we discovered top 23 key players by total patent application. McNeil-PPC, Inc., Bayer AG, Dr. Regenold Gmbh are dominant in this area. They take 54.10% of the total patent filing.
Pennsylvania, United States
Patent: 17
Nordrhein-Westfalen, Germany
Patent: 10
Baden-Württemberg, Germany
Patent: 6
Kent, United Kingdom
Patent: 4
New Jersey, United States
Patent: 2
Ohio, United States
Patent: 2
Buckinghamshire, United Kingdom
Patent: 2
New Jersey, United States
Patent: 1
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