Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7959010 | Standpipe with integrated regulator valve | Mark T. Wieczorek | 2011-06-14 |
| 7946430 | Filter with protruding member for engaging valve in head | Zemin Jiang, Yiming Jiang, Barry M. Verdegan | 2011-05-24 |