Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309981 | Poppet valve with a frangible sealing disc for a pressure vessel | John Wright Porterfield, Jr., Harlan Hagge, David Frasure, Adam Chattaway | 2016-04-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309981 | Poppet valve with a frangible sealing disc for a pressure vessel | John Wright Porterfield, Jr., Harlan Hagge, David Frasure, Adam Chattaway | 2016-04-12 |