Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845949 | Modular stack light with central connectors | Robert P. Feller, Will J. Preischel | 2017-12-19 |
| 9568179 | Modular stack light with central connectors | Robert P. Feller, Will J. Preischel | 2017-02-14 |