Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9932757 | Thermal release of a self-opening cover | — | 2018-04-03 |
| 9528311 | Thermal release of a self-opening cover | — | 2016-12-27 |
| 6427949 | Contactless point detection system for railroad switch | Michael F. Towey, Jr. | 2002-08-06 |
| 5909182 | Vandal resistant light signal unit | Daniel W. Van Alstine, David A. Donatello | 1999-06-01 |
| 5669587 | Point detection and indication with latch out means | Daniel W. Van Alstine, George E. Ludwick, George A. Bonner, Charles M. Eggebrecht, Allen Baughman +1 more | 1997-09-23 |
| 5504405 | Switch machine controller with fail safe mechanism | — | 1996-04-02 |