Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428886 | Forced entry resistant sash lock also configured to snap into the meeting rail of the sash window | Luke Liang | 2025-09-30 |
| 12359477 | Window sash lock configured for screwless snap-in installation onto a meeting rail | Luke Liang | 2025-07-15 |
| 11118376 | Combination sash lock and tilt latch and slidable window vent stop | Luke Liang, David Chen | 2021-09-14 |
| 10865592 | Sash lock and tilt latch also functioning as a window vent stop, with automatic locking upon closure | Luke Liang, David Chen | 2020-12-15 |
| 10844642 | Combination four-position sash lock and tilt latch also functioning as a window opening control device | Luke Liang, David Chen | 2020-11-24 |
| 10704297 | Impact resistant lock and tilt latch combination for a sliding sash window | Luke Liang, David Chen | 2020-07-07 |
| 10570652 | Integrated sash lock and tilt latch combination using one lock for two tilt latches | Luke Liang, David Chen | 2020-02-25 |