Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11752973 | Vehicle monitoring system | Kenneth M. Bush | 2023-09-12 |
| 10927598 | Roll-up dual curtain closure system | — | 2021-02-23 |
| 10239491 | Vehicle monitoring system | Kenneth M. Bush | 2019-03-26 |
| 9738257 | Vehicle monitoring system | Erik D. Arendall, Kenneth M. Bush | 2017-08-22 |
| 9475462 | Vehicle monitoring system | Erik D. Arendall, Kenneth M. Bush | 2016-10-25 |
| 9187060 | Vehicle monitoring system | Erik D. Arendall, Kenneth M. Bush | 2015-11-17 |
| 8919415 | Curtain closure system having impact resistant tension bar | — | 2014-12-30 |
| 8439099 | Dual curtain closure system having uni-directional securing hooks | — | 2013-05-14 |
| 8016014 | Combination garage door and roll-up curtain system | Shawn J. Crider, Lesley R. Jenkins | 2011-09-13 |
| 7828037 | Portal covering for controlled environments | — | 2010-11-09 |
| 7802607 | Combination garage door and roll-up curtain system | — | 2010-09-28 |
| 7631683 | Combination garage door and roll-up curtain system | — | 2009-12-15 |
| 6942001 | Magnetic sealing apparatus for portal covering | Charles H. Harbison | 2005-09-13 |
| 6138739 | Portal covering | Charles H. Harbison | 2000-10-31 |
| 5960847 | Sealable curtain | Charles H. Harbison | 1999-10-05 |
| 5785105 | Sealable curtain | Charles H. Harbison | 1998-07-28 |
| 5752557 | Sealable curtain | Charles H. Harbison | 1998-05-19 |
| 5566736 | Sealable curtain | Charles H. Harbison | 1996-10-22 |
| 5458537 | Switch apparatus for power winch | Charlie Starnes | 1995-10-17 |
| 5336131 | Differential pressure control apparatus for livestock houses | Anthony L. Ellard | 1994-08-09 |
| 5193483 | Secondary sensing system for contactor control system | Anthony L. Ellard | 1993-03-16 |
| 5051671 | Proximity sensor and control | Nathan John Smith | 1991-09-24 |