Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10864929 | Railyard crew member helmet for use within a railyard | Jon A. Preston, Jeff Chastine, John Roberts | 2020-12-15 |
| 10814894 | Railyard crew member vest for use within a railyard | Jon A. Preston, Jeff Chastine, Anthony J. Giertych, John Roberts | 2020-10-27 |
| 10562553 | Railyard crew member vest for use within a railyard | Jon A. Preston, Jeff Chastine, Anthony J. Giertych, John Roberts | 2020-02-18 |