Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7093349 | System for manufacturing sash window assemblies | Richard A. Gardner, Steven E. Schultz, Mark V. Murphy, Vincent Eslick, George E. Heid | 2006-08-22 |
| 6802105 | Spring balance assembly | Allen D. Polowinczak, Mark V. Murphy | 2004-10-12 |
| 6751904 | Balance system for sash window assembly | Richard A. Gardner, Steven E. Schultz, Mark V. Murphy, Vincent Eslick, George E. Heid | 2004-06-22 |
| 6523307 | Balance system for sash window assembly | Richard A. Gardner, Steven E. Schultz, Mark V. Murphy, Vincent Eslick, George E. Heid | 2003-02-25 |
| 6183024 | Tilt-latch for a sash window | Steven E. Schultz | 2001-02-06 |
| 6021603 | Tilt-latch with bolt stop | Michael Bratcher, James Sharp, Jason Annes, Steven E. Schultz | 2000-02-08 |
| 5924243 | Rotor for a sash balance brake and pivot pin assembly | Allen D. Polowinczak, Mark V. Murphy | 1999-07-20 |
| 5806243 | Sash balance brake assembly | Steven E. Schultz, Allen D. Polowinczak | 1998-09-15 |
| 5806900 | Stop for a slidable window | Michael Bratcher | 1998-09-15 |
| 5632117 | Sash balance brake assembly | Steven E. Schultz, Allen D. Polowinczak | 1997-05-27 |
| 5553903 | Window vent stop | Steven E. Schultz, Allen D. Polowinczak | 1996-09-10 |
| 5371971 | Sash balance brake and pivot pin assembly | — | 1994-12-13 |
| 5273363 | Roller for sliding windows and doors | — | 1993-12-28 |
| 5251401 | Pivot corner for a sash window | James Sharp | 1993-10-12 |