Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10844636 | Combination forced entry resistant sash lock and tilt latch, also functioning as a window opening control device | Luke Liang, David Chen | 2020-11-24 |
| 10633897 | Tamper-resistant lock | Luke Liang, David Chen, Troy A. Kirkland | 2020-04-28 |