Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10337648 | Fixed cone sleeve valve with finger extensions on sleeve gate for cavitation suppression | Brian T. Hartman, Catherine A. Hartman | 2019-07-02 |
| 10184567 | Spring ring valve seat and butterfly valve with spring ring valve seat | — | 2019-01-22 |