Issued Patents 2021
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168703 | Stepped leading edge fan blade | James C. Muth, Patrick Todd Woodzick, William J. Carlson | 2021-11-09 |
| 11137134 | Combination LED lighting and fan apparatus | William J. Carlson | 2021-10-05 |
| D930815 | Fan blade | James C. Muth, Patrick Todd Woodzick, William J. Carlson | 2021-09-14 |
| 11060712 | Combination LED lighting and fan apparatus | William J. Carlson | 2021-07-13 |
| 11028223 | Ceiling tile with built-in air flow mechanism and UV air purifying device | William J. Carlson | 2021-06-08 |