Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352289 | Low ash carbon blacks | Daniel W. Weaver, Frank J. Hrach, Jr., Chung-Huei Shieh, Jay J. Zimmer | 1994-10-04 |
| 5288788 | Carbon blacks imparting superior treadwear/hysteresis performance and process for producing carbon blacks | Chiun Huei Shieh, John M. Branan, Jr., Ted W. Bush, Miles Mace | 1994-02-22 |