Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347660 | Multipiece core assembly for cast airfoil | William E. Sikkenga | 2002-02-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347660 | Multipiece core assembly for cast airfoil | William E. Sikkenga | 2002-02-19 |