Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313116 | Stackable baffle drop shaft unit and method | Richard J. Eggleston, II | 2022-04-26 |
| 9249566 | Stackable tower shaft wall stair unit and method | Richard J. Eggleston, II | 2016-02-02 |