Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10415310 | Safety mechanical barrier and system for above-ground pool ladders | Elmer Chi Hang Cheng, Dong Xu | 2019-09-17 |
| 10400465 | Threaded attachment system for wall-mounted pool skimmer | Yifeng Zhang | 2019-09-03 |