Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9988768 | System, method, and apparatus to restrict movement of railway guard bar | Phillip R. Merrifield | 2018-06-05 |
| 9932054 | Double point derail switch | Phillip R. Merrifield, Russell R. Hein | 2018-04-03 |
| 8474730 | Track system including a guardrail | Brian Alvin Laws, Robert C. Roberts | 2013-07-02 |
| 7793891 | Railway diamond crossing | Russell R. Hein, Robert C. Roberts | 2010-09-14 |
| 7574820 | Jack stand for plow hitch | Charles S. Musso, Jr., Tom W. Musso | 2009-08-18 |
| 7526883 | Plow hitch with cam locking blocks | Charles S. Musso, Jr., Tom W. Musso | 2009-05-05 |
| 7472837 | System, method, and apparatus for railroad guide rail support | Robert C. Roberts, Mark Sutcliffe | 2009-01-06 |
| 7467748 | System, method, and apparatus for railroad guide rail support | Robert C. Roberts, Mark Sutcliffe | 2008-12-23 |
| 6971610 | Railway diamond wedge crossing with reversible beam castings | Russell R. Hein, Robert C. Roberts | 2005-12-06 |
| 6758406 | Rail switch brace | — | 2004-07-06 |
| 6393644 | Bridge joint | — | 2002-05-28 |
| 6363564 | Three-piece bridge joint | — | 2002-04-02 |