Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7510303 | LED illuminated lamp with thermoelectric heat management | Thorgeir Jonsson, Gudlaugur Kristinn Ottarsson, Sturla Jonsson | 2009-03-31 |
| 7425075 | Optical reflecting material | — | 2008-09-16 |
| D574519 | Wood guardrail for roadways and bridges | — | 2008-08-05 |
| D529200 | Wood guardrail for roadways | — | 2006-09-26 |
| D522165 | Light fixture lens | Allen W. Hubbell, Thorgeir Jonsson, Daniel M. Hubbell, F. Christopher Hubbell, Jason D. Hubbell | 2006-05-30 |
| 6892502 | Space frame support structure employing weld-free, single-cast structural connectors for highway signs | Robert W. Blyth, Philip V. DeSantis | 2005-05-17 |
| 6705744 | Area lighting device using discrete light sources, such as LEDs | Philip V. DeSantis | 2004-03-16 |
| 6685154 | Connector and method for assembling structural elements together without the use of weldments | Robert W. Blyth, Philip V. DeSantis | 2004-02-03 |
| 6676279 | Area lighting device using discrete light sources, such as LEDs | Philip V. DeSantis | 2004-01-13 |
| 6561492 | Wood clad guardrail assembly | — | 2003-05-13 |
| 6502805 | Sheet-metal highway guardrail system | David Lewis, William Atwood | 2003-01-07 |
| 6454488 | Roadway energy absorbing impact attenuator | David Lewis, William Bryson, William Atwood | 2002-09-24 |
| 6422714 | Illuminated, solar powered, vehicle activated, traffic sign | — | 2002-07-23 |
| 6409433 | Foundation piles or similar load carrying elements | Alfred Owen | 2002-06-25 |
| 6367208 | Composite foundation post | Jerome Campbell | 2002-04-09 |