Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9803415 | Spacer for insulating glazing unit | Louis Anthony Ferri, Larry K. Johnson, Qingyu Zeng, Kevin Zuege, Ronald Ellsworth Buchanan +5 more | 2017-10-31 |
| 8794932 | Hydraulic lift device | Matt Montoya, Curtis Crosby | 2014-08-05 |
| 8534019 | Glass block with low-e center lite | Todd W. Haney, Gerhard Reichert | 2013-09-17 |
| 5054162 | Constant force compensation for power spring weight balance | — | 1991-10-08 |
| 4955159 | Retaining catch for tip-out sash | — | 1990-09-11 |
| 4914780 | Compound counterbalance and winding systems with zero torque spirals | Michael R. Nier | 1990-04-10 |
| 4854077 | Fail-safe tip-lock shoe | Michael R. Nier, John H. Moran | 1989-08-08 |