With the analysis among 128 patents, we discovered top 16 key players by total patent application. Goodyear Tire & Rubber Co., Bridgestone Corp., Société de Technologie Michelin are dominant in this area. They take 57.81% of the total patent filing.
Ohio, United States
Patent: 43
Tokyo-to, Japan
Patent: 17
Pennsylvania, United States
Patent: 12
Kentucky, United States
Patent: 10
North Carolina, United States
Patent: 8
Michigan, United States
Patent: 4
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