Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591343 | Apparatuses for generating acoustic waves | Wei Han, Robert Birchak, William Trainor, Thomas Ritter, Kwang Yoo +1 more | 2009-09-22 |
| 5090658 | Bellows sealed rotary valve and seal assembly | — | 1992-02-25 |