Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7726945 | Industrial ceiling fan | Donald P. Grant, Paul Maly, John Moore, Aaron J. Wiegel | 2010-06-01 |
| 7658232 | Fire safety systems for buildings with overhead fans | Daniel M. Anderson, Aaron J. Wiegel | 2010-02-09 |
| 7337822 | Retractable safety barrier | Jason D. Miller, Donald P. Grant, Paul Maly, Mike Gallenberger | 2008-03-04 |
| 7237591 | Retractable safety barrier | Jason D. Miller, Donald P. Grant, Paul Maly, Mike Gallenberger | 2007-07-03 |
| 7207370 | Retractable safety barrier | Jason D. Miller, Donald P. Grant, Paul Maly, Mike Gallenberger | 2007-04-24 |
| 7159637 | Impactable bottom curtain for a rolling steel door | Linda Kasper, Jason D. Miller, Donald P. Grant, Paul Maly | 2007-01-09 |
| 7040373 | Extruded door panel members | — | 2006-05-09 |
| 6698490 | Release mechanism for industrial doors | Bill Hoerner, Tom Jansen, Perry W. Knutson, Steve Lester, Donald P. Grant | 2004-03-02 |
| 6655442 | Sectional door with extruded panel members | — | 2003-12-02 |
| 6484447 | Seal for sectional door | Jason D. Miller, Donald P. Grant | 2002-11-26 |
| 5765897 | Twist-in visor mount | Jesse Kalkman, Paul T. Vander Kuyl, Val Anthony Bellora, Michael R. Yandell | 1998-06-16 |
| 5544927 | Twist-in visor mount | Jesse Kalkman | 1996-08-13 |
| 5470123 | Visor bracket | — | 1995-11-28 |
| 5409285 | Sliding visor | Douglas J. Redder | 1995-04-25 |