Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142737 | Bucket and wheel dovetail design for turbine rotors | Robert E. Seeley, Eloy Vincent Emeterio | 2000-11-07 |
| 5393200 | Bucket for the last stage of turbine | Stephen G. Ruggles, James Vogan | 1995-02-28 |
| 5299915 | Bucket for the last stage of a steam turbine | Steven G. Ruggles | 1994-04-05 |
| 5286169 | Bucket for the next-to-last stage of a steam turbine | Stephen G. Ruggles, Chic S. Yang | 1994-02-15 |
| 5267834 | Bucket for the last stage of a steam turbine | Stephen G. Ruggles | 1993-12-07 |
| 4643645 | Stage for a steam turbine | Kenneth E. Robbins, Stephen G. Ruggles, Dan Duncan, John C. Williams, Stephen K. Tung +1 more | 1987-02-17 |