Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9457821 | Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications | David L. Hill, Charles A. Wisniewski, Lawrence Lowe | 2016-10-04 |