Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8322090 | Thermally efficient window assembly | John Uhl, Tsutomu Ito, Richard Braunstein | 2012-12-04 |
| 8191313 | Sash windows | Tsutomu Ito | 2012-06-05 |
| 7571568 | Sash windows | Tsutomu Ito | 2009-08-11 |