Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966525 | Acoustically improved gas turbine blade array | Robert J. Manzi, Jr., Douglas C. Mathews, Johan van Achterberg | 1999-10-12 |
| 5537861 | Method of balancing a bladed rotor | Leon H. Seitelman, Johan van Achterberg | 1996-07-23 |