Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340231 | Pavement marker | Richard M. Steere | 1994-08-23 |
| 5277513 | Snowplowable pavement marker using different materials | Robert M. Flanagan, Henry R. Krepel, Richard M. Steere | 1994-01-11 |