Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533536 | Hydro-turbine runner | Richard K. Fisher, Jr., Robert G. Grubb, Joseph M. Cybularz, Richard K. Donelson, Wolfgang Heine | 2003-03-18 |
| 6254339 | Hydro-turbine runner | Richard K. Fisher, Jr., Robert G. Grubb, Joseph M. Cybularz, Richard K. Donelson, Wolfgang Heine | 2001-07-03 |
| 6016600 | Method of assembling a turbine runner situated in a water passageway | Robert G. Grubb, Randy V. Seifarth, Robert D. Steele | 2000-01-25 |
| 5954474 | Hydro-turbine runner | Richard K. Fisher, Jr., Robert G. Grubb, Joseph M. Cybularz, Richard K. Donelson, Wolfgang Heine | 1999-09-21 |