Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159617 | Balanced globe valve | Irving C. Erickson, Hongming Ge | 2007-01-09 |
| 7017608 | Balanced globe valve | Irving C. Erickson, Hongming Ge | 2006-03-28 |
| 6926249 | Precision modulating globe valve | Irving C. Erickson, Daniel F. Murphy, Jerry L. Snyder | 2005-08-09 |
| 6394135 | Balanced plug valve with contour wall | Irving C. Erickson, Gary B. Burwell, John Du | 2002-05-28 |