Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12123258 | Manual window treatment having a floating chain tensioner | David A. Kirby, Robert T. Nachtrieb | 2024-10-22 |
| 11686152 | Manual window treatment having a floating chain tensioner | David A. Kirby, Robert T. Nachtrieb | 2023-06-27 |
| 11236547 | Manual window treatment having a floating chain tensioner | David A. Kirby, Robert T. Nachtrieb | 2022-02-01 |
| 7002560 | Method of combining data entry of handwritten symbols with displayed character data | — | 2006-02-21 |