Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297611 | Guardrail terminal | Dakotah Sicking, Steven D. Thompson, Kenneth Walls, Kevin D. Schrum, Joseph Schwertz +2 more | 2025-05-13 |
| 12109482 | Sports wall assembly | — | 2024-10-08 |
| 11846077 | Guardrail terminal | Dakotah Sicking, Steven D. Thompson, Kenneth Walls, Kevin D. Schrum, Joseph Schwertz +2 more | 2023-12-19 |
| 11759697 | Sports wall assembly | — | 2023-09-19 |
| 11466415 | Guardrail terminal | Dakotah Sicking, Blake A. Feltman, Steven D. Thompson, Kenneth Walls, Kevin D. Schrum +3 more | 2022-10-11 |
| 11389714 | Sports wall assembly | — | 2022-07-19 |
| 10914044 | Breakaway guardrail post for a highway crash attenuation system | John R. Rohde, King K. Mak, John D. Reid | 2021-02-09 |
| 10857959 | Controlled axle release mechanism for a truck trailer attenuator | John R. Rohde, King K. Mak, John D. Reid | 2020-12-08 |
| 10779600 | Protective helmets having energy absorbing shells | Benjamin S. Willis | 2020-09-22 |
| 10729200 | Protective helmets having energy absorbing tethers | Blake A. Feltman, James T. Houston | 2020-08-04 |
| 10568377 | Protective helmet systems that enable the helmet to rotate independent of the head | — | 2020-02-25 |
| 10507377 | Sports wall assembly | — | 2019-12-17 |
| 10444099 | Systems and methods for testing protective helmets | — | 2019-10-15 |
| 10119231 | Energy absorbing guardrail system having a modified first upper post | John R. Rohde, King K. Mak, John D. Reid | 2018-11-06 |
| 10115200 | Systems and methods for analyzing sports impacts | Seth Cohen, Dennis Leonard | 2018-10-30 |
| 10036132 | Twist box guardrail terminal | — | 2018-07-31 |
| 9963844 | Energy absorbing guardrail system | John R. Rohde, King K. Mak, John D. Reid | 2018-05-08 |
| 9856616 | Self-restoring crash cushions | David Littlefield, Kenneth Walls, Seth Cohen, Kevin D. Schrum | 2018-01-02 |
| 9732484 | Energy absorbing guardrail system | John R. Rohde, John D. Reid, King K. Mak | 2017-08-15 |
| 9683340 | Systems and methods for supporting bollards | David Littlefield, Kenneth Walls | 2017-06-20 |
| 9145943 | Systems and methods for absorbing energy | — | 2015-09-29 |
| 9091091 | Energy absorbing sports board assembly | Cody Stolle | 2015-07-28 |
| 8448913 | Anchor cable release mechanism for a guardrail system | John R. Rohde, John D. Reid, King K. Mak | 2013-05-28 |
| 7913981 | Cable release lever | John R. Rohde, Ronald Keith Faller, Jim Holloway, John D. Reid, Robert W. Bielenberg +1 more | 2011-03-29 |
| 7690687 | Trailer mounted attenuator with breakaway axle assembly | John D. Reid, John R. Rohde, King K. Mak | 2010-04-06 |