Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1090108 | Window shade with cord protector and sliding actuator | Charles R. Derk, Jr., James Liu | 2025-08-26 |
| D1087657 | Sliding actuator for a window shade cord protector | Charles R. Derk, Jr., James Liu | 2025-08-12 |
| D1083440 | Window shade cord protector with sliding actuator | Charles R. Derk, Jr., James Liu | 2025-07-15 |