Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10232387 | Pressure regulating nozzle assembly with flow control ring | Carl L. C. Kah, Jr., Weiming Feng | 2019-03-19 |
| 10220405 | Sprinkler flow stop and pressure regulator combination | Carl L. C. Kah, Jr., Weiming Feng, Richard Zhang | 2019-03-05 |