Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591909 | Railroad wheel steels having improved resistance to rolling contact fatigue | Daniel Hunter Stone | 2009-09-22 |
| 7559999 | Railroad wheel steels having improved resistance to rolling contact fatigue | Daniel Hunter Stone | 2009-07-14 |