Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1071693 | Smart lock | Zhe Li, Xuefeng Gu | 2025-04-22 |
| 11905737 | Electric locks | Xuefeng Gu | 2024-02-20 |
| D1014220 | Electronic access control device | Xuefeng Gu | 2024-02-13 |
| D992539 | Gateway device | Xuefeng Gu | 2023-07-18 |
| D774681 | Wall lamp | Qian Xiang | 2016-12-20 |
| 6212638 | Method for generating unpredictable authentication identification symbols | George C. Lee | 2001-04-03 |
| 6038924 | Low frequency seismic accelerometer | George C. Lee | 2000-03-21 |
| 5765313 | Method and apparatus for real-time structure parameter modification | George C. Lee, Mai Tong | 1998-06-16 |
| 5526609 | Method and apparatus for real-time structure parameter modification | George C. Lee, Mai Tong | 1996-06-18 |