Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268246 | System and method for securing tuned mass dampers to rail | Marco Leone | 2022-03-08 |
| 11174597 | System and method for securing tuned mass dampers to rail | — | 2021-11-16 |
| 10487456 | Special trackwork assembly | Masoud Ansari | 2019-11-26 |
| 10370798 | Rail assembly | — | 2019-08-06 |
| 9617688 | Rail assembly | — | 2017-04-11 |
| 8714462 | Special track assembly and methods of making same | W. Bradley Bedford, John G. Brooks, Bruce E. Burkhardt | 2014-05-06 |
| 8245950 | Removable rail seal | Bruce E. Burkhardt | 2012-08-21 |
| 8100342 | Shallow flangeway rail seal | Bruce E. Burkhardt | 2012-01-24 |
| 6213407 | Two-piece rail seal clip and tool for installing same | Christopher David WHELAN | 2001-04-10 |
| 4746534 | Method of making a thermocouple | R. Michael Phillippi, David C. Greenspan, Tadeusz M. Drzewiecki, Taki Negas, Ernie Tokay +1 more | 1988-05-24 |
| 4721534 | Immersion pyrometer | R. Michael Phillippi, David C. Greenspan, Tadeusz M. Drzewiecki, Taki Negas, Ernie Tokay +1 more | 1988-01-26 |