Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684052 | Method of brazing carbide using copper-zinc-manganese-nickel alloys | Allen S. McDonald, Charles W. Philp | 1987-08-04 |
| 4631171 | Copper-zinc-manganese-nickel alloys | Allen S. McDonald, Charles W. Philp | 1986-12-23 |