Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378657 | Valve plug assembly and seat ring for regulator | — | 2019-08-13 |
| 10364896 | Valve plug assembly for pressure regulator | Roy Ronald Pelfrey | 2019-07-30 |
| 10303445 | Network service providing method and network service station using same | Wai-Tung Cheung, Ho-Cheung Cheung | 2019-05-28 |
| 10203061 | Fluid regulator with field convertible slam-shut device | G. Glynn Crutsinger, Horatiu P. Tripon | 2019-02-12 |
| 10168717 | Removable balanced regulator | Roy Ronald Pelfrey | 2019-01-01 |