Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10289429 | Multiple sign controller system using multiple virtual sign controllers | — | 2019-05-14 |
| 10078975 | Highway variable message sign with apertures | — | 2018-09-18 |
| 9343000 | Fine pitch full color variable message sign | — | 2016-05-17 |
| 8972284 | System and method for controlling outdoor signs | Gene Daigle, Mike Rose, Charles Lee Lindsey, Vance Brown, Douglas Stoyer | 2015-03-03 |
| 8446293 | Traffic sign system that uses the national transportation communications for intelligent systems protocol | Eugene Daigle | 2013-05-21 |
| 7716861 | Outdoor display sign | — | 2010-05-18 |
| 7556403 | Hooded face plate for a message and display sign | — | 2009-07-07 |
| 6596059 | Automated filter changing device and method | Allan Clarkson Greist | 2003-07-22 |
| 6012210 | Light emitting diode jig | Allan Clarkson Greist | 2000-01-11 |
| 5497573 | Thermally-protected display with a ventilation system | Cecil S. Renfro | 1996-03-12 |
| 4680883 | Scroll module and sign system for internally illuminated signs | Cecil S. Renfro | 1987-07-21 |
| 4496945 | Method and apparatus for symbol display device | Cecil S. Renfro | 1985-01-29 |