Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678829 | Hydrodynamically lubricated rotary shaft seal with environmental side groove | William T. Conroy | 1997-10-21 |
| 5657961 | Flexible wedge gate valve | Patricio D. Alvarez, Jaw-Kuang Wang | 1997-08-19 |