Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5745051 | Surface material and condition sensing system | John A. Doherty, Charles A. Kalbfleisch, William J. Collins | 1998-04-28 |
| 5619193 | Surface material and condition sensing system | John A. Doherty, Charles A. Kalbfleisch, William J. Collins | 1997-04-08 |