Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12091894 | Window balance systems | Travis Steen | 2024-09-17 |
| 11879281 | Automatic window sash interlock | Allen Rickenbaugh, Chad Kramer, Gary E. Tagtow, Douglas John Criddle | 2024-01-23 |
| 11692380 | Window sash lock and tilt mechanism | Allen Rickenbaugh, Chad Kramer, Gary E. Tagtow | 2023-07-04 |
| 11560743 | Window balance systems | Travis Steen | 2023-01-24 |
| 11136801 | Inverted constant force window balance | Wilbur James Kellum, III, Chad Swier, Travis Steen | 2021-10-05 |
| 11066850 | Access handle for sliding doors | Gary E. Tagtow, Matt Halbersma, Michael Lee Anderson | 2021-07-20 |
| 10563440 | Inverted constant force window balance | Wilbur James Kellum, III, Chad Swier, Travis Steen | 2020-02-18 |