Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11186986 | Sleeve assembly for a poured concrete deck | Dennis L. Hart, Virgil O'Neil | 2021-11-30 |
| 11156318 | Test valve assembly with extraction mechanism | Jacob CHASE | 2021-10-26 |
| 10989334 | Bracket for positioning and protecting pipes in concrete | Dennis L. Hart, Virgil O'Neil | 2021-04-27 |
| 10975567 | Extendable sleeve for poured concrete deck | Larry D. Brown, Dennis L. Hart, Virgil O'Neil | 2021-04-13 |