Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7686027 | Multi-port free flow valve and element | Steven D. Welch, Robert Elbich | 2010-03-30 |
| 7383853 | Multi-port free flow valve and element | Steven D. Welch, Robert Elbich | 2008-06-10 |
| 6976664 | Free flow valve and element | Steven D. Welch, Robert Elbich | 2005-12-20 |