Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9771776 | Flapper stabilization for back pressure valve | Roger L. Schultz | 2017-09-26 |
| 9752410 | Flapper stabilization for back pressure valve | Roger L. Schultz | 2017-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9771776 | Flapper stabilization for back pressure valve | Roger L. Schultz | 2017-09-26 |
| 9752410 | Flapper stabilization for back pressure valve | Roger L. Schultz | 2017-09-05 |