Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7392823 | Combination valve | Xingen Dong, Frank Holzschuh | 2008-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7392823 | Combination valve | Xingen Dong, Frank Holzschuh | 2008-07-01 |