Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12320542 | Parallel-walled ventilation duct assembly with integrated low-profile subducts | Timothy Edward McNulty, Thaddeus James Rohskopf | 2025-06-03 |
| 8267759 | Sub-duct and method of exhausting into a generally vertical main shaft | Timothy Edward McNulty, Mark Steven Sylvia | 2012-09-18 |