Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9963854 | Guardrail with tapered vertical channel post | Robert J. Madera, Dennis D. Wetterich, Timothy N. Zier, Terril Johnson | 2018-05-08 |
| 9487080 | Draining system for fuel tank | Robert J. Madera | 2016-11-08 |
| 7505269 | Thermal energy storage transfer system | Michael R. Cosley, Marvin P. Garcia | 2009-03-17 |
| 6063152 | Tuned electromagnetic interference air filter | — | 2000-05-16 |