Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619909 | Casing treatment for a fluid compressor | Mark L. Barnett, Martin Graf, Om P. Sharma, William D. Sprout | 2003-09-16 |
| 6231301 | Casing treatment for a fluid compressor | Mark L. Barnett, Martin Graf, Om P. Sharma, William D. Sprout | 2001-05-15 |
| 6217277 | Turbofan engine including improved fan blade lining | Xiaoliu Liu | 2001-04-17 |