RF

Roy M. Freeman

Bridgestone: 3 patents #795 of 2,860Top 30%
📍 Akron, OH: #639 of 1,966 inventorsTop 35%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,646,354 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5494091 High modulus low hysteresis rubber compound for pneumatic tires William L. Hergenrother, Frederick J. Ravagnani 1996-02-27
5494958 High modulus low hysteresis rubber compound for pneumatic tires William L. Hergenrother, Frederick J. Ravagnani 1996-02-27
5464899 High modulus low hysteresis rubber compound for pneumatic tires William L. Hergenrother, Frederick J. Ravagnani 1995-11-07