Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767647 | System and method for changing a surface characteristic of a concrete bridge surface | Thomas Walter Spisak | 2023-09-26 |
| 10961669 | System and method for changing a surface characteristic of a concrete bridge surface | Thomas Walter Spisak | 2021-03-30 |