Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325458 | Independent rail test release mechanism | Andrew Imhof, Sheldon Adam Benton, Barrett Swygert, David F. Byrne, William A. Chisholm, Jr. | 2025-06-10 |
| 10953897 | Electronic circuit controller for railway switch machine, railway switch machine and railway switching system including same | Eric McGRAW, Russell Szewczyk | 2021-03-23 |
| 10370013 | System and method for identifying point detection calibration prior to point detector lock-out and switch machine failure | Peter J. Mariuzza, Jr., Sean Dowhy | 2019-08-06 |
| 9592843 | System and method for identifying point detection calibration prior to point detector lock-out and switch machine failure | Peter J. Mariuzza, Jr., Sean Dowhy | 2017-03-14 |
| 8485687 | Light assembly | Glenn Bauernfeind | 2013-07-16 |
| 7168662 | Hollow tie railroad switching assembly | Edward E. Edwards, Jr. | 2007-01-30 |
| 6648276 | Drop down lug for railroad switch application | — | 2003-11-18 |
| 6474605 | Point detector sleeve for railroad switch machine and associated method | Leonard Wydotis, Fred E. Woodlief | 2002-11-05 |
| 6149106 | Railroad switch point position indicator | — | 2000-11-21 |
| 6138959 | Low profile switch machine gear box | Leonard Wydotis, Marvin R. Wohlhueter | 2000-10-31 |
| 6062514 | Railway switch circuit controller | — | 2000-05-16 |
| 5176350 | Equipment mounting assembly for railroad car couplers | — | 1993-01-05 |