Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431246 | Modular horizontal window blind | — | 2002-08-13 |
| D440097 | Window blind apparatus | — | 2001-04-10 |
| D439460 | Window blind apparatus | — | 2001-03-27 |
| 6009931 | Modular horizontal window blind | — | 2000-01-04 |
| 5970834 | Depalletizer and hopper feeder | Gary M. Garofano, Richard R. Lile, Jerald McBride, Gregory Nowak | 1999-10-26 |
| 5249741 | Automatic fan speed control | William R. Bistline, William C. Johnson | 1993-10-05 |