Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7984911 | Face seal for gas turbine engine | Louis J. Dobek, Masayoshi Sonokawa, Harold K. Shaffer | 2011-07-26 |
| 7946590 | Face seal for gas turbine engine | Louis J. Dobek, Harold K. Shaffer | 2011-05-24 |