Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34702 | Reinforced ceramic investment casting shell mold and method of making such mold | John Corrigan, Philip Crouch | 1994-08-23 |
| 4998581 | Reinforced ceramic investment casting shell mold and method of making such mold | John Corrigan, Philip Crouch | 1991-03-12 |