Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677973 | Method and apparatus for environmental protection of drive-over tire tread depth optical sensors | Michael T. Stieff | 2017-06-13 |
| 9616860 | Portable wheel rolling apparatus | Michael T. Stieff | 2017-04-11 |