Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11795627 | High-resilient special trackwork rail fastener | Robert Alsop, Sheenfar S. Fong | 2023-10-24 |
| 11639584 | Composite rail joint end post | Arka Prabha Roy, Sidney Shue | 2023-05-02 |
| 10746777 | Stray current sensor | Jacob Bridges | 2020-08-18 |
| 10519610 | Apparatus and method for rail head improvement | William Douglass Mohr, David Workman | 2019-12-31 |
| D816548 | Third rail bracket | Emrecan Soylemez | 2018-05-01 |
| 9670623 | Stray current resistant direct fixation fastener | Robert Alsop, Pete Frye, Michael P. O'Connell | 2017-06-06 |
| 9505419 | Signal bond plate | — | 2016-11-29 |
| D756844 | Curve block | Scott Almes, Robert Alsop | 2016-05-24 |
| 9238419 | Conductor rail | David Mayfield | 2016-01-19 |
| 9004372 | Dual hardness bonded direct fixation fastener | Robert Alsop, Hakan Eksi, Michael P. O'Connell | 2015-04-14 |
| D724490 | Third rail bracket and coverboard | Michael P. O'Connell, Robert Alsop | 2015-03-17 |
| D702596 | Third rail bracket | — | 2014-04-15 |
| 8070073 | Composite rail joint end post | Sidney Shue | 2011-12-06 |
| D616791 | Railroad tie hybrid extender/conductor rail support insulator | Hakan Eksi, Robert Alsop | 2010-06-01 |