Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886985 | Auxiliary fan cooling of bearing housings | Qimin Dong | 2005-05-03 |
| 6648336 | Multi-function seal assembly for rotating shafts | Michael A. Shea, Qimin Dong | 2003-11-18 |
| 5669717 | Center flange bearing suitable for use with electrical machinery | — | 1997-09-23 |